BTW..., they say that ALPHA testers can't play beta:
ALPHA STRESS TEST MEMBERS
The Closed Beta phase is limited to certain players. The codes used for the Alpha Stress Test are no longer active. Thank for your help in the previous test. There will be more beta phases coming up that you will be able to participate in.
But that's totally wrong. So far everyone I know who played ALPHA has also BETA download available just bellow the disabled Alpha automatically without any key inputs.