Yesterday Google released an early look at the Android OS 1.5 software developer kit, which includes developer support for all of the new Cupcake features that we are going to see in devices like the HTC Magic from Vodafone.

The new SDK also gives developers the ability to write programs for both the 1.1 release and the new 1.5 release, and going forward will continue to support multiple versions of the platform.

Developers can download the Android 1.5 SDK here.