I think your all forgetting the mighty dollar which spawned the moniker M$. I'd be surprised if Microsoft didn't release for both XBLA and VC, and then six months later throw in a "Rare Classix" collectors disk for all three next gen consoles and PC, with some bonus material but a universally appalling control system. It wouldn't be like MS to ignore any potential healthy revenue stream. It'll just take time because _everything_ MS do takes time.