Hey, that's pretty cool. Although, I can't get a relative size of the thing. The pics make it look really small, but I know it can't be because of the media size. I bet they are around the same size as a mini-disk is, the media that is... Which would make it a bit larger than the second photo (closed version).
Another thing, I am not so sure about the buttons. They look to be flush with the face. I prefer a button that sticks up more, so I know where my fingers are pressing. Also, I would give anything to see a joystick instead of a d-pad. Even if it were just a tiny one, just something other than the d-pad.
I just noticed that these are concept pics. Hrm...
Did you notice that it takes the memory stick? It also supports mp3 format. I wonder if it can double as an mp3 player. Storing songs on the memory stick and such.
Damn... this little guy is more powerful than my first computer!

Much more.
side note - I wonder if it'll break in a year like my Sony DVD player and my Sony TV did! BAH!!