I actually toyed with the idea of getting a Nook for my wife and putting Android on it but in the end went for the Asus Transformer. The Nook looks nice but it's won't be easily available here and purchasing books is somewhat tricky also.
It's the kind of device that will sell millions probably because folks in the US can go into one of 1700 B&N stores and try it out and be potentially wowed.
System One: Popcorn Hour A200, PS3 (US 60G) dead and now replaced with a PS3 SuperSlim, NPVR running on Sempron 3000 (XP), Sony BDP-S390 BD player, Logitech Revue, Pioneer AVR, JVC 56" D-ILA 720P RP TV
System Two: Popcorn Hour A110 , Oppo BDP-80 BluRay Player with hardware mode to be region free, Vivitek HD1080P 1080P DLP projector with 100" screen. Harman Kardon HK AVR 254 7.1 receiver, Toshiba HD-A2 HD-DVD player, Roku XS media player