OK, so my $59 Atrix Lapdock showed up a few minutes ago. I opened up the carrier dock and flipped around the connectors. The dock needs to be dremelled a little bit, but once it's plugged in, the video is mirrored and the touchpad and keyboard function normally. It's just like an Android powered laptop at this point, with a 3G connection. Need to dig around for the webtop/lapdock app now and see if that's something I should care about. The resolution looks to be exactly the same as the phone, for now. I'm thinking a little hack could get the resolution upped.
HP/Palm Pre 2 (in a drawer somewhere)
HTC Thunderbolt (sold)
HTC Supersonic (x2, but one sold)
HTC G1 (sold)
Moto Cliq (sold)