iOS 4.2.1 for iPhone 4

The free iOS 4.2 Software Update brings all-new features to your iPhone, ipad, and iPod touch.1 Just connect your device to your computer to download the update. It’s free. It’s easy. And it lets you do even more with the world’s most advanced mobile operating system.

Features:

AirPrint
AirPrint makes it simple to print email, photos, web pages, and documents right from your iPhone, iPad, or iPod touch. A few taps is all it takes to go from viewing it onscreen to holding a printed copy. There’s no software to download, no drivers to install, and no cables to connect.

AirPlay
AirPlay lets you stream digital media wirelessly from your iPhone, iPad, and iPod touch to your Apple TV and AirPlay-enabled speakers. So you can watch movies and photos on your widescreen TV and play music through the best speakers in the house.

find my iphone, iPad, or iPod touch.
Find My iPhone, iPad, or iPod touch — the MobileMe feature that helps you locate your missing device and protect its data — is now free on any iPhone 4, iPad, or fourth-generation iPod touch running iOS 4.2.3 Once you set it up, you can find your lost device on a map, display a message on its screen, remotely set a passcode lock, and initiate a remote wipe to delete your data. And if you eventually find your iPhone, iPad, or iPod touch, you can restore everything from your last backup.

What's New in This Release:
· Applies all features from the unreleased iOS 4.2 update
· You can now change the font size of text in Calendar from the Accessibility settings
· Fixes intermittent Wi-Fi issues in the unreleased iOS 4.2 update
· Fixes the VoIP issues in iOS 4.2 update