anyone got an invite?

I didn't

http://ps3.ign.com/articles/101/1013280p1.html

August 12, 2009 - If you're a fan of online first-person shooters, you might want to check your email. Notices are being sent out across the internet today regarding to a seemingly random set of users on the PlayStation Network regarding the MAG Beta -- you could be among the lucky few chosen.

MAG, an large-scale shooter from the folks at Zipper Interactive, boasts battles of up to 256 players at once, which is a tremendous feat for an online game. Although the notices do not actually get you into the Beta, answering the email will register you for possible participation in the upcoming Beta and a chance to try out the intriguing FPS before it becomes freely available to the public.

So keep your fingers crossed and hope that a visually fetching email arrives in your inbox.