Nexus S goes Live, Gingerbread is detailed.
Today Google did a two for one deal. They put up the page for the nexus S which also details Android 2.3 - Ginger bread, as well as releasing the SDK.
The Nexus S page can be viewed here: http://www.google.com/nexus/
Details on Android 2.3 can be viewed here: http://developer.android.com/sdk/android-2.3-highlights.html
You will find the video presenting Android 2.3 below: