Dev Team member MuscleNerd sent a tweet a few minutes ago about an upcoming live demo of the YellowSn0w unlock for iPhone 3.0. The live demo will happen Tuesday night, most likely on Qik and should answer a lot of questions.

This demo should show how YellowSn0w can unlock firmware 3.0. I assume this unlock will only work for iPhones that currently support YellowSn0w.