Apple has released the final version of iOS 4.2.1 for users of iPhone 4, iPhone 3G, iPhone 3GS, iPad and iPod touch. The version brings in a host of new features, including Multitasking, Folders, Unified Inbox, Game Center, AirPlay and AirPrint along with other enhancements. The iOS 4.2 update is available to download to iPad, iPhone and iPod touch by syncing the device with iTunes 10.1.

To update to iOS 4.2.1, users will need to:

1. Connect the iPhone, iPad or iPod touch with the computer through USB
2. Start iTunes 10.1
3. A message will display asking if you want to download and install the update.
4. Click on ‘Download and Install’ button and you can get the new firmware.

The iOS 4.2 update is available to download to iPad, iPhone and iPod touch by syncing the device with iTunes 10.1.

Direct Download Links for iOS 4.2.1

• iPhone 4
• iPhone 3GS
• iPhone 3G
• iPad
• iPod touch 2G
• iPod touch 3G
• iPod touch 4G
• Download iTunes 10.1 for Windows and Mac.

Note: If you wish to unlock and jailbreak your iDevice, stay away from the new version iOS. If you upgrade, you may be stuck with a device you may never be able unlock. Wait for word on official jailbreak or unlock tools.

Also read:

• Jailbreak Newly-released iOS 4.2.1 GM on iPad and iPod Touch 4G Using PwnageTool with Working Cydia
• Jailbreak iOS 4.2.1 GM on iPhone & iPod Using Current Version 0.9.6b2 Redsn0w