Check out the TechEd Live web site Scott Scovell has developed. It allows you to plan all your sessions, share them with the community and choose which friends you want to see along side you on the maps.
For screen shots and an overview there is a write up here:
There is also an accompanying desktop application (built by yours truly) which allows you to do all your scheduling offline and the sync it up to the TechEd Live site. Details on that at the link above aswell.
Check out the site here
Given the ‘hastily cobbled together’ nature of both the web site and desktop app, there are a bunch of minor issues. I’ve noted some of them here:
Web site built with: .Net 2.0, SQL and Atlas
Desktop bult with: Visual FoxPro