Way back in 2007, Quake Arena was revealed for Xbox Live Arcade. Fast forward to 2010, and the game isn't out yet. But it might be soonish.
Bethesda is gearing up for PAX 09 next week, packing up playable demos of upcoming titles and a healthy dose of Brink for the long cross-country trek to Seattle.
And for good measure, here's a shot of Doom II for Xbox Live Arcade as well, on display at this year's QuakeCon.