This guy has made what I consider to be the best Dreamcast mod ever! Full VGA wth a decent size screen all in one unit! http://forums.benheck.com/viewtopic.php?f=18&t=29212 Yaklumo
I like his stuff in terms of modification, but not his designs. They usually end up looking pretty gimp. I don't see the point of this one. It doesn't have a built in controller, so it's not very portable. Ah well...
I tell you what would make something like this cool, making it using a proper small lcd screen and mounting it to your wall so you could also connect a ps2, ps3...etc and switch between those and your DC.
I've seen some of Ben Heck's cool mods before, the G4 network here in the States has a segment on him every so often. But this mod just confuses me. What possible use is having a dreamcast tablet if all the games are controller based? He shows the tablet lying on the floor with the controller, are we supposed to look down at the floor to play? That black case looks thick and horrific. And is it just me or everytime we see one of his mods that we do want, its always "this is just one of a kind for me only" from Ben. I guess I just dislike show off sites. Ok rant over. I know the portable 2600 someone made was being sold somewhere (I don't think Ben was selling it). Basically they would construct it for you.