Not open beta though. As the other beta events, it is is pre-purchase only. So that stuff of buying a key and adding it to your account is not valid, I think.
That's personal opinion based on good business sense, and based on what they did for GW1. Let the hype build, do an open beta just before release (AFTER you've tested the bejeesus out of it with the closed tests, and know you're not going to crash and burn) and watch your sales go through the roof.

).
Just bought End of Nations & now the same payment options aren't working - nor are different ones, fun.