Codemash: End of the white board?

Christopher Gant is fielding questions on SCCM with Subversion. He's got a tablet PC and is marking up his slides with ink as he explains branching, merging and versioning. How elegant. No worries about having a whiteboard available, having pens/eraser, etc...

Most presentation facilities have some sort of video projection equipment. Not all have a whiteboard. Sure, you can do the same thing with a mouse, but using the stylus on a tablet is so much more intuitive.