Apple recently released iOS 4.2.1 for the iPhone, iPod Touch and iPad. There is a jailbreak available for iOS 4.2.1 too. However, at times, your iDevice could throw problems, which is why it is a good option to backup your SHSH blobs.

The dev team has released a new unlocking tool for the iPhone to unlock iPhone 3G and 3GS. PwnageTool 4.1.3 unlocks iPhone devices with baseband later than 05.13.04. The new hack for the AT+XMPP exploit requires users to upgrade to baseband 06.15.00 before attempting an unlock.

Yesterday, Apple released the highly anticipated iOS 4.2.1 for the iPod Touch, iPhone and the iPad. The iOS4.2 update is a minor one for the iPod Touch and the iPhone but it brings a bucket load of changes for the iPad.