Fonte: http://www.macnn.com/articles/09/06/30/iphone.sdk.3.1.beta/

Right on the heels of the iPhone 3.0 firmware update, Apple has released a beta version of the iPhone SDK 3.1to developers. Although the SDK is still in the testing phase, Apple included approximately 15 new OpenGL tools for 3D modeling and graphics, according to MobileCrunch. VideoEditorController and Video Picker APIs could allow third-party apps to bring up the video editing interface.

Reports suggest the SDK also enables MMS by default, although the added functionality will still require support from AT&T in the US. The beta is said to include XCode and Dashcode updates as well.

Developers will likely find more changes and expanded functions as they have a chance to dig deeper.