I'll be blogging on my personal blog during Tech Ed. Why? MSN Spaces supports easy upating via email.
I can take a photo, and blog it using email which means I dont have to have my laptop on me all the time. I know there are blogging tools like Kevins excellent (and free) one, but community server doesn't do pictures well (at least the MSDN one doesn't), which is one of the strengths of spaces.
So if you want to keep up with whats going on - subscribe to the feed at http://spaces.msn.com/members/darrylb and see what's happening!