[TetriS]

Waiting 10 years for it to come to Xbox, may have to wait the same time for it to come to PC...

Sep 30, 2003, was Halo PC's release date, so, add 10 years to that... If it's released on PC it will probably be then.
But, since it's multiplayer runs on the Reach engine, (they're all the same engine, from first to last, just updated), it probably won't come until that has been ported, and if they want the 3 year releases, from Xbox to PC, that fits in to the 3 years for Reach, (or close enough).

So, it will either happen, or it won't happen, don't get your hopes up, Microsoft only want to milk the cow, so we will have to wait. :P

GFWL is dead, and with windows 8 (which will hopefully be out by 2013) xlive /is/ gfwl. So there is still hope, because there's still the [unlikely] possibility we will be able to play xbox games on pc.