Here's my unofficial schedule:
4/5 - Long Beach, 5/1 - Burbank, 5/3 - Irvine, 5/15 - LaJolla, 5/17 - Pleasanton, 6/12 - Onatario, 6/14 - LA. The venues may change from the location of the Vista / Office launch events. Watch www.msdnevents.com to see when sign ups for these events are available. Q2 topics are CardSpace and AJAX.
Also, due to numerous requests, I am planning to do some webcasts based on BI (Business Intelligence) with SQL Server 2005. As I get them scheduled, I'll post more information in my blog.