Web2Open, the free unconference within Expo, starts tomorrow, and we've got a new twist: after some really good speed-dating suggestions from Radar readers, we've been inspired to try speed Q&A.

Here's how it's going to work: we'll have 50 minutes, five prominent people and five tables, one each for programmers, designers/UI specialists, marketing/community experts, businesspeople and undeclared. The prominent people--who are, I'm delighted to announce: Clay Shirky, Kara Swisher, Matt Cutts, Saar Gur and Tim O’Reilly--will each hold a nine-minute informal Q&A at a table, and then we'll ring a bell to have them switch tables. The session is tomorrow (Weds) at 2:40p in the Web2Open rooms, second floor of Moscone West. With strong participation from you, this really ought to be a fun and interesting experiment.