The place to check out about Tech Ed's vibe is Tech Ed TV. Have a look! http://www.microsoft.com/emea/teched2008/itpro/tv/default.aspx
Brad Anderson's keynote will be there shortly too!
These are some things Arlindo Alves saw during the keynote:
You can follow Arlindo on Twitter: https://twitter.com/aralves
Also our Fishbowl is open for speaker interviews and more. That content will be online starting about 48 hours later on Tech Ed Online: