Surprise! I'll be heading up to Philly tomorrow night for the Philly .net user group at our Malvern office. Sorry for the last-minute notice, but I just found out this morning.
Bill Wolff asked me if I'd do a little demo of ASP.NET "Atlas", and I told him I'd be happy to oblige. The main presenter is MVP and ASPInsider, Jason Gaylord, speaking on Membership and Personalization in ASP.NET 2.0.
Should be a fun meeting. Hope to see you there!