Apple has just released the iOS4.3 update, which was not scheduled for release for another 2 days, and is available to download via iTunes now.
The iOS update brings:
- AirPlay Enhancements – with third party Apps and websites now able to use Airplay
- Safari Performance updates with faster Javascript
- iTunes Home Sharing – allows you to play your entire iTunes library from anywhere in the house
- iPad side switch configurable as mute or rotation
- Personal Hotspot for iPhone 4
The Personal Hotspot requires a supporting hotspot tethering plan from your carrier, and only recently clarified it only works with up to three devices over Wi-Fi, three devices over Bluetooth, and one device over USB.