Here's the rumor that won't go away. United States Patent Application #20060026536 (which features the signature of Jonathan Ive) concerns "...Methods and systems for processing touch inputs are disclosed. The invention in one respect includes reading data from a multipoint sensing device such as a multipoint touch screen..." Is an Apple tablet in the works (yes, I'm bringing that up again)? Hrmph! even has a very nice round-up of images related to using "gestures" with a touchscreen-based user interface. Note the iPod-like scroll wheel in Fig. 27D.
Seriously, though, who would you trust to deliver a tablet PC that's both beautiful and useful? Mr. Ive and Apple, that's who. I'm keeping my fingers crossed for this one.