If you walk into a conference session, and every seat has a vendor's flyer on the desk, do yourself a favor - just walk out. Frank Cohen from PushToTest never really talked about testing services in any practical way. Then again, he also didn't do a very good job of demostrating or selling his product, either. It was very much the worst of both worlds, and I actually turned on the WiFi antenna (which I had resisted a few times in some other talks) and checked my email, as well as did a little GoogleTalking with the people back at home. The worst part was, because the room was fairly full when we walked in, we sat in the front row. I felt a little bit bad - Frank seemed like a really nice guy, and in fairness, the tool he was pushing was open source. But he really didn't have much useful to tell me.
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.