Oaks Mall - Report I heard was 10 people in line around 10:30am. Around 200 in line at 3:40pm (Pacific time). Buddy at work's brother is in line.
When I was there for the i4, the Apple guy's wouldn't say how many i4's they had, but that they had "enough". I think it turned out to be 800+. I'm assuming (dangerous I know) that they'll have at least that many iPad 2's there.