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An academic paper written by a former Apple intern who now serves as a Core OS engineer at the company has revealed that it was working on a secret experiment to port Mac OS X Snow Leopard to the ARM architecture.

Was Apple investigating the idea of Mac OS X iPads, or MacBook Airs running on ARM chipsets?

In 2010, Apple’s Platform Technologies Group (a subdivision of the CoreOS department) spent some time working on a project to port the Mac OS X Darwin kernel to the ARMv5 chipset architecture — the same family of chipsets that currently powers iOS devices like the iPhone and iPad.

Here’s a snippet from the project, titled Porting Darwin to the MV88F6281, subtitled ARMing the Snow Leopard:

The goal of this project is to get Darwin into a workable state on the MV88F6281 processor so that other teams can continue their work on this platform. The project has three major milestones:

Getting the buildsystem into shape, so that it can build the kernel and kexts. Building and booting the kernel into single user mode. Booting the system into multi-user mode.

The project was only made public several months ago. While iOS also uses the Darwin kernel, this project involved Mac OS X 10.6 Snow Leopard and was left for the CoreOS teams to continue. Since Mac OX X 10.7 Lion has since shipped, as have newer generations of iPad and MacBook Air, without any sign of MAC OS X on ARM, it’s unknown if this project is still ongoing or has since been put on the shelf. However, the author of the paper is now a full-time employee at Apple, working as a CoreOS Engineer.

While some might find the idea of a Mac OS X iPad intriguing, Tablet PC, which put full Microsoft Windows on a tablet, never gained any traction in the market. It, like Mac OS X, was simply not designed for a multitouch user interface.

Microsoft, to their credit, is currently working on Windows 8, which will have both a Windows Phone-like Metro user interface optimized for tablets, and a more traditional Windows 7-like interface for desktops and laptops.

Instead of making MacBook Airs with ARM processors, Apple decided to take iOS software “Back to the Mac” instead with OS X 10.7 Lion.

Given Apple’s preference for simplicity, and the huge sales they’ve achieved with iPad, it seems unlikely they’d deviate from their current strategy. Indeed, there has been more speculation of late that Apple would continue to move iOS towards the Mac, as opposed to moving the Mac to ARM.

However, Mac OS X once ran on Power PC chips, yet Apple had it secretly running on Intel chips at the same time. It only makes sense for a company as forward thinking as Apple to have ARM-compatible builds of OS X in the development labs.

SO while neither an OS X tablet nor an ARM MacBook Air seem likely, it’s interesting to see further evidence of Apple keeping the Mac platform nimble.

UPDATE: For those curious about the group, kernel, and chipset referenced above, here are the descriptions from the project introduction:

About the Platform Technologies Group

As it was described by a manager: “We do the plumbing, if we do our jobs right, you never see it.”. The Platform Technologies Group, a subdivision of the Core OS department, works on the embedded platforms that Apple maintains. Here, platforms are brought up and the embedded kernel and lower level support for the platforms is maintained.

What is Darwin?

Darwin is the lower half of the Mac OSX operating system. It includes the XNU kernel which is based on the Mach microkernel, and the userland.

What is the MV88F6281?

The MV88F6281 is an ARMv5te compatible processor from Marvell. It is based on their custom Sheeva core, which is designed to be like the ARM926EJ-S core from ARM. It has all the features youʼd expect from a modern CPU, including several high speed SERDES lanes, a Harvard L1 cache, and 128kb of unified L2 cache.

Source: Delfte University of Technology

The discovery of newly-upgraded high-DPI UI elements in Mac OS X 10.7.3 has led to some speculation that Apple is continuing to lay the groundwork for high-resolution Mac displays that approach the pixel density of its Retina Displays.

Screenshot from FinerThingsIn.com DaringFireball notes several changes in some of the icons found in OS X 10.7.3. Several of our readers had also noticed the small changes in pointer icons in the latest version. It seems the changes run a bit deeper than on first glance. The new icons apparently come in high DPI versions that allow them to scale at high resolutions. Have you noticed that Safari’s hovering-over-a-link pointing-finger cursor looks a little different in Mac OS X 10.7.3? It’s not just that the finger is at a slightly different angle — it’s a new UI resource that scales gracefully to larger sizes. That’s not the only new high-DPI image resource in 10.7.3: the grabby hand in Mail, the camera cursor for selecting an individual window to take a screenshot of, and a few other UI elements got the high-DPI treatment in 10.7.3.Matt Gemmell shows an enlarged version of the icon when zoomed in Universal Access: As Daring Fireball notes, this could simply be meant for use in Universal Access, but given the active work on high-resolution support in OS X, we too think ultra-high resolution Macs are coming soon. One recent rumor had pegged a "Retina" MacBook Pro as arriving as early as Q2 2012.

When you open Cydia store or App Store you ask yourself how those developers made this apps ? And then you tell yourself but what programs they uses it to make these Apps, well developers uses Xcode to create apps for iPhone and push it to the App Store, so today we would like to tell you that iOSOpenDev app is ready to be downloaded....

As promised, iOSOpenDev is now available for download. So if you have a little bit of a background in programming, and you’re looking for a way to get into jailbreak development, you might want to check it out…
With iOSOpenDev you will be able to make Jailbreak tweaks for Cydia all you need to use the application is a Mac computer, running at least Mac OS X 10.6 or later and Xcode 4 or higher. The developer warns that iOSOpenDev is still in beta, but he believes that it’s ready for public use.
Download iOSOpenDev app for developers 
[Source]

Following up on the information iMore received yesterday on potential ZFS hooks in iOS 5.1, a reliable source let us know that Apple has been investing heavily in ZFS appliances from Oracle. (Whether or not this will be made public is unknown; it doesn’t seem to be right now.)

Also, several of our readers familiar with ZFS wrote in to speculate as to why Apple may be exploring ZFS for use on iPhone and iPad. Broadly, it may have something to do with ZFS’ snapshot technology. ZFS snapshots can be easily compressed and encrypted, de-duplicated, and can transfer delta (bit differential) updates between cloud and device. The snapshots can also work like Time Machine, easily and efficiently providing incremental backup and restore capability from an hour ago, a day ago, a week ago, or more, asynchronously and block by block. Here’s what Wikipedia says about ZFS snapshots:

An advantage of copy-on-write is that when ZFS writes new data, the blocks containing the old data can be retained, allowing a snapshot version of the file system to be maintained. ZFS snapshots are created very quickly, since all the data composing the snapshot is already stored; they are also space efficient, since any unchanged data is shared among the file system and its snapshots.

Writeable snapshots (“clones”) can also be created, resulting in two independent file systems that share a set of blocks. As changes are made to any of the clone file systems, new data blocks are created to reflect those changes, but any unchanged blocks continue to be shared, no matter how many clones exist. This is an implementation of the Copy-on-write principle.

Snapshots is only one of the features of ZFS (Zettabyte Files System), the advanced file system created by Sun, now owned by Oracle. Apple included a partial port of ZFS in earlier versions of Mac OS X but pulled it before the official release. It’s a file system particularly well suited for cloud environments and storage pools, which might be why Apple is looking at it again in the post iCloud.

Apple is an incredibly private company that works hard behind the scenes in order to present a beautifully packaged, highly polished product to consumers. No doubt there is a lot of really cool, really geeky technology at the core of iCloud, for example, but all most of us see are elegant interface elements in Settings.app that, when tapped, all but transparently backup and restore our iPhones or iPads.

If indeed Apple is planning on using ZFS to make iCloud backups and restores better, it will probably be invisible to end users. One day, iCloud will simply work better, faster, and even more reliably.

More: Wikipedia

How To Fix CUI Errors After Installing OS X Lion 10.7.3 Update. Today we showed you the Update for Mac OS X Lion 10.7.3  and Mac OS X Lion Server 10.7.3, this update is recommended for all OS X Lion users and includes general operating system fixes that improve the stability, compatibility.

Are you found some crashes and errors like CUI CUI errors after Installing OS X Lion 10.7.3 Update? The solution Download OS X 10.7.3 Combo Update To Fix Crashes and Errors .

Download the combo installer from the Apple site via this link.

If your 10.7.3 installation comes with problems, strange behavior or error, simply download and run the 10.7.3 Combo Updater on top of the existing 10.7.3 installation followed by rebooting your Mac. Once rebooted, your Mac should now be fine running 10.7.3.

But what if you are stuck on a boot loop during OS X 10.7.3 installation and going nowhere (read: stuck)? A little bit creative ideas plus simple workaround may help you to solve this.

OSXDaily mentioned a nice simple trick makes use of Target Disk Mode booting (Firewire or Thunderbolt required).

Here’s its download link..

Download MacOSXUpdCombo10.7.3.dmg

File Size : 1.26 GB
Direct Link : Download Here
Mirror Link : Download Here

 

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Download Absinthe Jailbreak v0.4 For Windows, Mac And Linux. a few days Greenpoison Absinthe jailbreak released to jailbreak iphone 4s and ipad 2 on iOS 5.0 / 5.0.1 for Untethered Jailbreak today the Chronic Dev team has released updated version of Absinthe tool for Jailbreak iPhone 4S / iPad 2 5.0.1 untethered For Mac OS X, Windows, Linux.

@pimskeks announced the update:

#Absinthe 0.4 released greenpois0n.com/?p=173 – OSX 10.5 support (PPC+Intel). Re-jailbreaking not required. Changelog: pastebin.com/DdwGKstR

If you haven’t jailbreak your iPhone 4S or iPad 2 yet and you want to jailbreak your A5 Device, just  Download Absinthe v0.4 and follow guide.

What’s New in Version 0.4
? Mac: added support for OSX 10.5, PPC and Intel CPU
? added consistency check on startup to make sure required files are in place
? Windows: fixed bug in payload generator that might cause a crash

Download Absinthe v0.4 for Windows Download Absinthe v0.4 for Mac OS X Download Absinthe v0.4 for Linux

Related Posts:Download GreenPois0n Absinthe v0.3 for Linux (x86/x86_64)Download Greenpois0n Absinthe UnTethered 5.0.1 Jailbreak iPhone 4s – iPad 2Download Windows Greenpoison Absinthe 5.0.1 Jailbreak iPhone 4s / iPad 2Fix camera roll error 5.0.1 Jailbreak iPhone 4S – iPad 2Download iWipe Cache To Fix White Icons After Jailbreak

Download Mac OS X Lion 10.7.3 Update (Server), From several weeks Apple released Mac OS X Lion 10.7.3 after this release Apple released Mac OS X Lion 10.7.3 Build [11D24] DevelopersFor Developer today Apple has released Mac OS X Lion 10.7.3 and Mac OS X Lion Server 10.7.3.

Mac OS X Lion 10.7.3
The 10.7.3 update is recommended for all OS X Lion users and includes general operating system fixes that improve the stability, compatibility, and security of your Mac including fixes that:
? Add Catalan, Croatian, Greek, Hebrew, Romanian, Slovak, Thai, and Ukrainian language support
? Address issues when using smart cards to log into OS X
? Resolve issues authenticating with directory services
? Address compatibility issues with Windows file sharing

For detailed information on this update, please visit this website: http://support.apple.com/kb/HT5048.
For information on the security content of this update, please visit: http://support.apple.com/kb/HT1222.

Mac OS X Lion 10.7.3 Server
The 10.7.3 update is recommended for all servers currently running Lion Server. This update includes general operating system fixes that enhance the stability, compatibility, migration and security of your server and improvements of the following services and applications:

File Sharing pane in the Server application
• display number of connected users
• list connected users
• disconnect specific AFP users with a message
• send a message to specific AFP users
• set a login greeting message for AFP users
• access to advanced ACL controls VPN pane in the Server application
• choice of enabling L2TP or L2TP and PPTP protocols
• sharing of address ranges between L2TP and PPTP (if PPTP is enabled)
• configure DNS name server addresses and domain names provided to VPN clients
• option to save L2TP or PPTP settings as a configuration profile Web pane in the Server application
• enable .htaccess overrides
• edit web sites’ domain names
• map multiple domains into a single web site
• configure redirects and aliases
• specify custom index files
• choose SSL certificates for individual websites

Wiki Server
• support for editing Wiki pages from an iPad running iOS 5 or later
• support for Active Directory groups
• improved reliability for certain timezones
• improved support for an administrator-specified custom tag, protocol and inline style whitelist

Profile Manager
• updated Exchange, Mail and Restrictions payloads for iOS clients
• updated Dock payloads for OS X clients
• performance improvements
• allow VPN payloads to be used by both iOS and OS X clients
• support for External Account home folder locations
• improved support for managing enterprise applications

The update also includes specific fixes for:
• iCal Server auto-acceptance of meetings during free times
• authenticated directory binding to Open Directory servers with Directory Utility
• improved reliability of setting up Open Directory replicas
• correctly create podcasts when bound to an Active Directory server using Podcast Publisher
• improved support for different certificates used for IMAP/POP and SMTP in the Server application
• improved searching of logs in the Server application
• web password reset support when using the Internet Explorer 9 browser

For detailed information on this update, please visit this website: http://support.apple.com/kb/HT5049.
For detailed information on security updates, please visit this website: http://support.apple.com/kb/HT1222.

You can update to Mac OS X Lion 10.7.3 by selecting Software Update from the Apple menu at the top left of your screen.

[via]

Related Posts:Download Mac OS X 10.6.8 Official [Direct Links]How To Fix CUI Errors After Installing OS X Lion 10.7.3 UpdateNew Software Updates for New iMac, Magic Trackpad by AppleDownload Mac OS X 10.6.7Download Mac OS X Lion 10.7.3 For Developer

Paper Adventures
This is the original Paper Adventures Game. Shoot these doodle monsters with ink to save your notes from being destroyed by the army created by your brother. Finally released in beta and soon to be published for all of these platforms: Apple iOS ( iPhone - iPad - iPod Touch ) Coming Feb. 26 Google Android Phones and Tablets Coming Feb. 26 Microsoft Windows Phone 7 Coming Feb. 26 Microsoft Windows Coming Feb. 26 Apple Mac OS X Coming Feb. 26 Linux Coming Feb. 26 Xbox 360 Coming Feb. 26 Flash Coming Feb. 26 HTML5 Coming Feb. 26 From: Ma1akApps Views: 1 0 ratings Time: 01:37 More in Gaming