Yesterday Apple provided iPhone developers with Beta 2 of the OS 3.1 firwamre. This release didn’t mention any changes, although the first beta included minor feature adjustments without Apples mentioning. Beta 2 will most likely contain bug fixes which address issues in Beta 1. Along with this a updated version of the iPhone SDK for both Leopard and Snow Leopard have been also released.
If your using Beta 2 and notice any changes feel free to leave a comment.
Update: I’ve just found that beta 2 also introduces a public API for manipulating live video. Developers are still testing the capabilities but it could open the door for many interesting apps in the near future.