Now before you go and tell your friends and family what really is important to you (because lets be honest, WotLK beta > 4th of July, right?) you need to consider that this is nothing more than a big ol' rumor.
This information came from Gnorog when he was at the World Wide Invitational in Paris this past weekend. I know that Gnorog exists and is a German community manager, but I can't confirm that he was at the WWI (although I'm sure he would have been). We get a good amount of beta and release rumors every day here at WoW Insider, and half the time they refer to people that aren't even real. So this rumor gets +10 for referring to a real person.