As I've been predicting for years, I believe 1) multi-touch tablets, convertable clam-shell laptops and desktops will all get multi-touch user interfaces; 2) Apple will be first and best in this space; and 3) it will start with a "new Newton" small tablet device, and grow in size from there until desktop versions are bigger than 40 inches.
I wrote two years ago that:
"Apple's iPhone user interface is a glimpse of the future, not only of future Apple mobile computers, but desktops and the future of all PCs as well. It's inevitable that Apple will ship a tablet Mac that works like the iPhone."Looks like my most frequently-made prediction is finally coming true. (Props to Cult of Mac and 9to5Mac)