November 2009: Android 2.0

• The Android.App.Service.OnStartCommand(Android.Content.Intent, Android.App.StartCommandFlags, Android.App.StartCommandFlags) function will return the new Android.App.StartCommandResult.Sticky behavior instead of the old compatibility Android.App.StartCommandResult.StickyCompatibility.
• The Android.App.Activity class will now execute back key presses on the key up instead of key down, to be able to detect canceled presses from virtual keys.
• The Android.Widget.TabWidget class will use a new color scheme for tabs. In the new scheme, the foreground tab has a medium gray background the background tabs have a dark gray background.

Applications targeting this or a later release will get these new changes in behavior:

[Android Documentation]