Gizmodo's round up of Apple touch-pad rumors, here.
I won't go over them all, but it is coming, Apple's bald-faced lies to the contrary, and it will do something, and the consensus seems to be that it's going to be the iPhone on steroids.
An amusing side note: Five years or so ago, Apple gobbled up FingerWorks, a company that produced a multi-touchpad that was way ahead of anything anybody else had going. The iGesture™ was a boffo piece of hardware, with its firmware, and there was also a keyboard -- I bought one of each in 2002. The keyboard was too sensitive for me, but I still use the iGesture pad -- it beats every mouse or trackball or other style pad I've every tried, hands down.
(Editor's Note: If you want that Touch Stream™ keyboard? I'll sell it to you -- it has become a collector's item, apparently, and now goes for about $1500 ...)
Apple shut FingerWorks down, insofar as production, and somebody just parked the website, so you can book it that the iSlate -- if that's what they call it -- is going to have some spiffy multi-touch controls. With my iGesture, I can do all the mouse stuff, plus open and close files like turning a knob, and a whole bunch of other stuff.
Gonna be interesting ...