Great news for all android enthusiasts, Honeycomb v2 is here. Yes android 3.1 SDK is available in google repository. Fire up your SDK manager now get updates now. Updating will also raise you to tools revision 11 and platform-tools to revision 4. New API level is 12 having lot of interesting features like USB API( am sure embedded and robotic guys will love it ),MTP/PTP device support, built in RTP and more functionality in motion events,Wi-Fi,Animation Framework,UI frame work etc.