There has been a command line version of Ubuntu (UbuntuChroot) running on TouchPad for a while, via Preware. There also happens to be an Android emulator that runs quite well on Ubuntu. I suspect that the Android TouchPads are actually running Ubuntu, with an emulated Android overlay for the GUI.
Keep in mind that these were Qualcomm developer pads that somehow made it into the pipeline. It wouldn't be hard to port the emulator to utilize TouchPad's hardware, and since Ubuntu already works, problem solved. This makes a lot more sense than HP having developed a stand-alone version of Android for the TouchPad.
So, there you have it... and the videos tend to lend credit to this idea.
Keep in mind that these were Qualcomm developer pads that somehow made it into the pipeline. It wouldn't be hard to port the emulator to utilize TouchPad's hardware, and since Ubuntu already works, problem solved. This makes a lot more sense than HP having developed a stand-alone version of Android for the TouchPad.
So, there you have it... and the videos tend to lend credit to this idea.