By Joel Barish That's a Halo big number We always suspected that there were a lot of games of Halo 2 being played; we shudder to think how many games were logged just by the staff here at Xbox Today. Please don't tell our significant others. But when the gang at Bungie announced that they've reached a cool half-billion Halo 2 games played, that actually made us stop in our tracks. A half billion. You'd think with those kind of numbers they'd want to port it over to the Xbox 360, but they've got no plans to do so. Instead, they're going full steam ahead on Halo 3. Not that we mind playing Halo 2 on our 360s in the meantime, naturally. Here's the official word from Bungie: We've surpassed lots of cool numbers in the past, including numbers of total players, hours played and all that stuff, but we thought we'd note that at as of around noon today, a half-billion games of Halo 2 have been played on Xbox Live. That's a lot of games.