After introducing an API that allowed developers to check on an iOS device to see if its operating system had been compromised (read: jailbroken) less than six months ago, Apple has now unexpectedly dropped the functionality from iOS 4.2.1.
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Though this isn't the official untethered jailbreaking solution for iOS 4.2.1, the iPhone Dev Team has produced a short demo video showing off a workaround method for getting it done now.
Tests conducted by Nokia Siemens Networks confirmed that Apple has included support for the Network Controlled Fast Dormancy technology developed by Nokia to reduce network congestion and improve battery life in iOS 4.2.1.
As Apple continues to make its case for the iPhone (and iOS) being a better business phone solution, bugs in iOS 4.2.1 are causing problems for people using Microsoft Exchange 2003.
Apple really doesn't like you jailbreaking its Jesus phones, with reports that it stuck a new feature in iOS 4.2.1 to stop people from fiddling with the devices they've paid for with their own money.
With Apple's recent release of the latest version of its mobile operating system, iOS 4.2.1, still warm on everyone's plate, the iPhone Dev Team has successfully jailbroken the update.
Just as I updated my iPhone 4 to iOS 4.2.1 this morning, MacStories reported that a "reliable source" claims iOS 4.3 will be available in mid-December, adding support for the Apple/News Corp. joint, iPad-only app, The Daily.
Apple has just released a new version of the highly anticipated iOS 4.2 update for developers, iOS 4.2.1 Gold Master. Though the first Gold Master of iOS 4.2 was released weeks ago, Apple has yet to initiate a public release.