PenguinBait has posted some detailed steps on how to install Android onto your Nokia N810 tablet, thereby giving you the opportunity to test the DontBeEvilOS before everyone on your block. The instructions are fairly complex and could brick your stuff so keep your wits about you.
And here are instructions to get it up and running on an HTC Touch:
http://it029000.massey.ac.nz/vogue/
Can make calls, send texts, and surf no problems.