The most powerful and small developing board
UDOO is a multi development platform solution for Android, Linux, Arduino™ and Google ADK 2012. The board is designed to provide a flexible environment that allows to explore the new frontiers of the Internet of Things. UDOO allows you to switch between Linux and Android in a few seconds, simply by replacing the Micro SD card and rebooting the system.
via Features | UDOO.
The UDOO Quad retails for 135.00 USD. The forum has an entry that indicates an Android build of a game created in Unity3D ran, with some adjustments for keyboard and mouse input, rather than touch, on an UDOO Quad. That forum entry will be the next post.