The press release for the Quake III US Tour has been well, released, with some more details on the event (or events for that matter). If you're wondering what's going to go on at the bus stops, the PR has this bit of information, "at some locations, lucky players will get to challenge top professional guest-gamers" although nobody specific is named. I also enjoyed this quote quite a bit - actually it kind of scared me:

"You never know where the bus might stop -- there are a lot of routes between cities," Welch continued. "One day it might pull into a cyber cafe or a parking lot and just let people in to play -- it might even be at your house. You always have to be ready. Watch the Web. "