Word has trickled down from Warner Bros. that the upcoming sequel to 2009's Batman: Arkham Asylum has been postponed. The good news is that it hasn't been delayed on all platforms, so folks with an Xbox 360 or PlayStation 3 will be able to glide through Gotham as the caped crusader on time (October 18 in the US). The bad news, if you haven't gathered by now, is that PC gamers will have to wait until some undefined day in November.

Batman: Arkham City picks up about one year after the events of Arkham Asylum and introduces some classic villains not seen in the previous entry, such as Catwoman and Mr. Freeze. The title has been developed with Unreal Engine 3 and will feature support for PhysX and 3D Vision. Gameplay will focus on the same open world, stealth action elements, and along with adding various new weapons, most of the old ones have been upgraded.

Batman: Arkham City Mr. Freeze Trailer

In unrelated gaming news, Blizzard has announced that Diablo III's beta rollout is underway and fortunate souls among us should receive an email invitation shortly. It's unclear how long the prelaunch phase will last, but invitations will be served in several waves over the coming weeks. As usual, gamers are being selected largely based on their system specifications. You'll find the complete opt-in details and frequently asked questions here.

EA has also unveiled Battlefield 3's beta schedule and system requirements. Folks who preordered BF3 or purchased the Limited Edition of Medal of Honor will gain access to the beta on September 27, while the rest of the world will be invited two days later. The beta will serve as somewhat of an appetizer, as players will supposedly be limited to "Rush" mode on "Operation Metro," the first playable BF3 map shown at E3 earlier this year.

Battlefield 3 OperationĀ Guillotine Teaser

DICE suggests PC gamers should play with a quad-core processor, 4GB of RAM and a DirectX 11 graphics card with 1GB of VRAM or more (the GTX 560 and HD 6950 were specifically mentioned). Minimum requirements call for a 2GHz dual-core processor from the Core 2 Duo or Athlon X2 families or better, 2GB of RAM and a DX 10.1-compatible GPU with 512MB of RAM. PC gamers will also require EA's Origin platform to play the game.