Assassin's Creed: Brotherhood Beta Is a GameStop Pre-Order Bonus

It appears as if the only way you'll get to stress test Assassin's Creed: Brotherhood's online component for publisher Ubisoft is if you lay down the cash to pre-order it. 

This morning, Ubisoft announced that Brotherhood's US PS3-exclusive beta is the game's big-ticket pre-order bonus, and it'll only be available for GameStop shoppers. The beta itself will allow users to get a whiff of the game's online component starting on September 13, months before the game hits in November. I'll note that It is unspecified at what point the test will end.

The retailer-tied beta vouchers will be available on a first-come, first-serve basis, meaning you might want to jump on the pre-order express early if you care. The passes will be distributed on August 9 for both new and pre-announcement pre-orderers alike. 
 
As for what you'll be doing in the beta, the press materials left it rather vague. Brace yourselves for "brand new multiplayer gameplay." Whatever that's supposed to mean.