Fireball and Location, Location, Location at Web 2.0 Expo

In semi-private beta at the Web 2.0 Expo this week, Fireball is ghost of Dodgeball
revived across Twitter, Upcoming.org and location webservice Fire Eagle.  I'm looking forward to enabling my location and querying find my friends amidst the unwashed web masses at this mega event.

Plazes also just launched FireEagle support, letting my location on the network automatically update Fireball.

My guess is this if enough people get access to the beta, this could be the app of inflection for Fire Eagle, what SXSW did for Twitter.