What are the best software conferences for 2011?

codepalousa (March) http://www.codepalousa.com/

SXSW (March) (more interactive) http://sxsw.com/interactive

CodeConf (April) http://codeconf.com/

Future of Web Apps (June) http://futureofwebapps.com/

Defrag (November) http://www.defragcon.com

Software Craftsmanship (not yet scheduled, but I'd like to see this one come back) http://scna.softwarecraftsmanship.org/

Business of Software looks good....any others?