fisl9.0 turned out to be a far greater success than I could have imagined. With over 7000 participants and a few (beneficial) schedule changes, I had a chance to present with Alexandre Gomes (standing room only; be sure to check out his BOF on GWT at JavaOne), Francois Orsini and Gregg Spoar.
Here I am, showing WebMC on the iPhone. The trick to giving web-based demos on the iPhone (when the server is on your laptop and a WiFi network may or may not be available) is to enable connection sharing on your Mac (even if you don't have a connection to share). This works much better than creating an ad-hoc network from the Airport menu. You can even use multicast DNS names from the iPhone, such as "icefaces.local".