I hacked ans installed Cyanogenmod 9 with Android on my HP Touchpad (tablet) so now I am able to dual-boot into either WebOS (native OS for Touchpad) or Android's Ice Cream Sandwich at the touch of a button. It is pretty awesome now I have acess (free) to everything available on Android and thus I have installed a few games like Sonic, GTA 3, among others plus a ton of apps like Netflix and other Android stuff. It was pretty easy to do (like 30 mins) and def worth it.
check out the video below of a guy reviewing both OS's on the Touchpad along with video of GTA 3 on it
http://www.youtube.com/watch?v=mXpK8LGQugU&feature=related