Gizmodo points to this concept design for a Mac Tablet.
Looks slick, but I’m not sure how practical it is. First, the keboard is probably too thin to give adequate feedback while typing. Second, the Tablet’s stand probably isn’t going to work on a non-flat surface, such as a lap.
Other than that, note that if Apple came out with a Tablet PC, we’d instantly have another Tablet on the market that could run Vista :-). Would you pick up a Tablet like this versus let’s say a Motion?