As an Engineer (Mechatronics FTW!) I wholeheartedly agree- Engineers should be kept away from the general public for demonstrations. They should be where they belong, at the back making sure everything keeps working!
Looks okay but a bit clunky- though I guess this is a combination of Windows' sucking at implementing this and them not being at the correct angle. Laggy too.
Multitouch should be good, though Windows is exactly the wrong environment for it. Compiz + multitouch could be good but I've never seen it work.
And another thing- why are Multitouch demos always resizing photos and zooming in on Google Earth? I mean okay it's a bit cool but isn't everyone a bit bored of that? Surely something like a multitouch Starcraft battle would be vastly better? If you get a decent touchscreen it is actually quite enjoyable!