This is one of my favorite talks but...

It was at Business of Software 2010, not 2011.

You can get a transcript of the talk if you don't have time to watch the full hour here: http://thebln.com/2011/09/eric-ries-the-lean-startup-the-mos...

This year's event takes place in Boston 24-26th October. (I run it) http://businessofsoftware.org/