There is now a scheduling app for the Web 2.0 Expo. It’ll help you keep track of which sessions you want to attend, find out which ones are most popular, and who’s going to be where. It can be found at http://cal.web2expo.com.
ExpoCal has all of the views and pivots that you want for figuring out what is happening at a conference. It provides views of sessions by day, tag, and speaker. If you create an account you can make your schedule. People can also share their calendars (here’s mine for the first couple of days). You can see who else is attending a session and what its tags are. ExpoCal lets you gauge relative attendance size (popularity) with its tag and speaker clouds. It also has a mobile interface that let’s you see your schedule and what talks are happening now. There is rumor of a Twitter interface in the works.
Kellan Elliott-McCrea (an Expo Ignite speaker) updated OSCal for Web 2.0 Expo. He and Evan “Rabble” Henshaw-Plath created the initial app last summer. Thanks!