GOOD NEWS FOR WHOEVER DIDN'T GET ACCEPTED:
Blizzard has put up two servers for the beta, one in Asia, and one in the USA, and they are not linked. This means that if you have ONE key, then TWO people can be using it, one on each server.
This could be helpful for the following scenarios:
1. You got the beta, and you want to play a team game with a friend of yours, or against a friend. All you have to do is find someone else in your situation, swap keys, and agree that one group of you will be on USA, while the other plays on Asia.
2. You didn't get in at all, and you find some kind soul that will share their key with you. (No one has been kind enough to me yet 😉)
I'm pretty sure this is not infringing on any copyright issues, because blizz didn't say anything about not being allowed to share beta keys. So maybe we can set up some kind of ATOT swap thread for people that this might help.