Didn't purchase the Epic edition of Bulletstorm, but still want in on the Gears of War 3 beta? Fear not! If you pre-order Gears of War 3 at GameStop, you will be able to participate in the beta that runs from April 25 to May 15. Although the Bulletstorm beta starts one week earlier (April 18), it's better late than never.
In addition to the ability to play the multiplayer component of the game early, GameStop said in a press release that players will be able to unlock "exclusive content" that will carry over to the retail release. My bet is there will be some kind of super-special gun, because flaming helmets were so last year.
copied from another forum