Picked up a white Verizon iPad 2 today at GSP! I was 31 in line and there was at least 50+ people in line. When I arrived, the Apple guy said there was very limited supply of Verizon and Wifi models, no AT&T. People still waited in line though.
As they started letting people in, they let everyone know the Wifi model was out so half the line left. I went in and was the last one to get an iPad. Felt so lucky. Will go again tomorrow to see if I can trade it in for an AT&T model.