I called my local store just now, and they're 'currently out of the day'. Considering that they were selling out before they officially opened, it sounds like it's a little bit better.
I've been told that if you show up at or before opening, you've got a shot at getting AN ipad, if not the one you specifically wanted....
It's not difficult to purchase an iPad 2 from the Apple Store as long as the following two conditions are met:
1. They have iPad 2 in stock
2. You have money