He gets in a jab about windows:
You should give your ten slides in twenty minutes. Sure, you have an hour time slot, but you’re using a Windows laptop, so it will take forty minutes to make it work with the projector.
In the interest of full disclosure, Guy Kawasaki (OK, his VC company garage.com) turned us down for angel funding back when we were starting Oak Grove Systems (now owned by Seagull).
But I've gotten over the rejection, and recommend watching Kawasaki's talk he gave to the University of Hawaii College of Business Administration.