Social networking games seems to be the next big thing. Thanks to Farmville, Facebook has become a new platform for gaming. Now Facebook presents to you its first "First Person Shooter" with Brave Arms. In Brave Arms, you're able to run around with your Facebook friends in a 3D arena, shooting at each other's personalized avatars. During the game, you earn points to buy items for your avatar, so no avatar should look the same. You can go ahead and reserve your screenname and apply for beta acces...