We have sold out of keys for digital distribution in North America. GameStop and Best Buy still have stock available.
We limit sales to ensure we have enough capacity for our customers. We're likely to have capacity available after the initial crunch at the start of the weekend. Players who purchase when we're able to resume digital sales at buy.guildwars2.com will still be able to play for the remainder of the weekend. ~RB2
Cool, that one can play the rest of the beta if they pre-purchase a digital copy (if more go up before the event ends) once more come.