Following the iPhone 3.0 software released just about two weeks ago, Apple has recently pushed out its iPhone 3.1 software with the accompanying SDK for developers. The update improves video editing, app integration and extra speed boosts as well as some minor tweaks.

What’s new in iPhone OS 3.1 Beta build?

1. Video editing on iPhone 3GS wont overwrite the clip over the original when you are editing a clip.
2. iPhone vibrates when moving icons
3. “Fraud Protection” toggle has been added to settings under Safari.
4. iPhone boot time is now faster.
5. Voice Control now works over Bluetooth.
6. New APIs to enable third party apps to access videos and edit them.
7. Updated AT&T profile to 4.2
8. Updated modem firmware to 5.08.01
9. Improvements to OpenGL and Quartz.

[via Redmond Pie, the iPhone Blog]