Crysis developers Crytek are backing a new social gaming site called Gface, and while we haven't tried it out yet, it seems like it might actually be worth your time.
It claims to focus on multiplayer, with 2D and 3D casual and hardcore experiences, and all its games stream straight to your browser. It even boasts cross-platform play between phones, iPads and computers, and possibly more. Honestly, with Crytek behind it, it might just be awesome. You can hop into the public beta now to try it; let us know your findings in the comments or on Twitter.