I saw a teardown on some site, but I can't seem to find it...
One odd thing is you can't pull off the keycap unless you take the top bezel off, the keycaps have little skirts which prevent them being removed otherwise. I would also assume it will make it noisier when they top out and smack the bottom of the top plate.

It's a shame they didn't make it more like their E6700, with a trakpad and bluetooth... could have made an awesome htpc board.