Seen it before. However I have never seen the much more rare desktop PC, although pics are out there:
That is a photo from some improv skit thing. Those two guys brought their entire computers into the Starbucks for the single fact that it is ridiculous. They weren't being serious when they did it.
If you look at the url of the photo, you see: /improv-everywhere-mobile-desktop
http://improveverywhere.com/2008/02/25/mobile-desktop/
That is the link to the full video.
