The folks at QuickPWN.com has some details on what’s new in iPhone firmware 3.1 so far:
- The baseband has been updated to 5.08.01 – Ultrasn0w users should not use the iPhone OS 3.1 beta, otherwise their iPhones could be permanently locked!
- iPhone 3GS – When you’re trimming your videos you now have the option of saving the original video by tapping the “Save as copy” button.
- Voice Control is finally working over bluetooth now!
- When you move your icons around the iPhone vibrates
- MMS is enabled by default but does not work for AT&T users
- The AT&T profile is updated to 4.2
- Improvements to OpenGL and Quartz
- There’s now a VideoEditorController API – Allows third party apps to call up video editing UI
- Video picker API
I personally do not know of any significant reasons for jailbreaking the iPhone. If Apple’s cat-and-mouse with the iPhone Dev Team continues, there’s even less reasons to do so.