Apple has just released the very final version of iOS 4.2.1 for iPhone 4, iPhone 3GS, iPhone 3G, iPad and iPod touches. This version of iOS brings a number of new features for iPhone, iPad and iPod touch users including: Multitasking, Folders and Game Center for iPad, AirPrint, AirPlay, and other system wide changes and improvements.
Its official now! Apple has just issued a press release, confirming that the much awaited iOS 4.2.x software update will be be publicly available today for download via iTunes 10.1. Full press release is as follows
The recently released Redsn0w 0.9.6b3 can jailbreak all iOS based devices including the new A4 devices like iPhone 4, iPad and iPod touch 4G. Since Cydia included in this version of Redsn0w is not compatible with iOS 4.2.1, you can use the following steps to install a patched version of Cydia.
The iPhone Dev Team has just released Redsn0w 0.9.6b3 which brings support for iOS 4.2.1 GM firmware file. The highlight feature of this release is SSH and SSL support which will now allow you to install bundles and packages independent of Cydia, which is currently broken on 4.2.1.
I have just jailbroken my iPad on iOS 4.2.1 using PwnageTool bundles released by Johnny Franks. These bundles can be used to jailbreak the newly released iOS 4.2.1 GM on both iPad and iPod touch 4 with working Cydia !
Device Speed Test is a new app available in Cydia which lets you test the speed and efficiency of your iPhone, iPad or iPod touch, whilst also recommending what you should do to improve performance in simple ways.
Thanks to a new tweak available in Cydia, iPhone brightness can now be adjusted from the multitasking tray, found just under the music controls with App Switcher Brightness.
Ever since the open source drivers were released for the Xbox 360 Kinect, there has been a surge in hackers using it for a whole range of different applications. The potential of the impressive hardware was seen by Chris Rojas who created a new processing app which takes the distance data and renders objects in neon cubes, where the size of the cube is based on the object's distance from the sensor.
Apple today has released iOS 4.2.1 GM for iPhone 4, 3GS, 3G, iPad and iPod touches. This build which is currently available to developers only can be jailbroken using the current version 0.9.6b2 of Redsn0w. For those of you who don’t know, Redsn0w 0.9.6b2 is based on Geohot’s Limera1n exploit which can pwn all iOS devices for life.
Alright guys, here is a quick heads up! Apple has seeded iOS 4.2.1 GM to developers hinting towards the fact that final version will see the light of day soon. If you’re one of those who are currently relying on a jailbreak or a carrier unlock then we highly recommend that you avoid updating to iOS 4.2.1.

