Google has released the software developer kit for Android 2.2, the smartphone OS that is perhaps better known as Froyo (“frozen yogurt”).  No Android 2.2 devices have been announced yet, but there are a number of Google Nexus Ones out there with Froyo pre-loaded.  Google hasn’t indicated when a public Nexus One update will be available, but HTC has said that any 2010 Android devices it has announced and released should be eventually upgradeable to Froyo.

[via Mobile Burn]