Live demos are always a tricky thing–especially kringe worthy are live multi-touch demos. After all it’s a relatively new technology.
MacDailyNews has a video of Japanese broadcasters trying to demonstrate touch with Windows 7 and you can imagine what happens.
In this case, Windows 7 appears to do just fine, but the 24″ Sony VAIO L does not seem to be cooperating. I’m guessing it’s a hardware issue.