Epson just announced two LCD photo viewers. The P-6000 and P-7000. They look pretty decent with 80GB and 160GB respectively, with RAW support, a 35% faster image download speed, 640×480 resolution, and 94% reproduction of the Adobe RB color range.
The price is where they lose you, at $599 and $799. I’m not sure who they are targeting with these other then professional photographers and the like who need to peruse massive amounts of images. Seems pretty expensive for the rest of us ordinary folk.