Just to make this a little on target, I recently purchased a Lenovo X61 Tablet with Vista Ultimate (and lots of memory). I used a Lenovo tool to configure the factory reinstall to not put quite as much bloatware (which by default is extremely excessive) on the machine. So far, after the reinstall, I'd definitely recommend it.

Other than that, I'm brazenly hijacking the thread, because it's over 2 months old and no one else is using it. So far, I've installed One Note which (appears to be the best reason to get a tablet.) I'm also looking at three Firefox plug-ins (Firegestures, Grab and Drag and GeckoTip). Can anyone recommend any other must-have or particularly cool software specific to tablets?