We've got a solid bunch of pretty cool developments on the gaming front today, including a really awesome-looking DirectX 10 S.T.A.L.K.E.R. - Clear Sky trailer, Chicago Transit Authority vs. GTA IV ridiculousness, Guitar Hero 4 pinching ideas from Rock Band, and a whole lot more.
Metal Gear Online Beta Release Pushed Back (PS3) @ GameSpot
Guitar Hero 4 Evolving into Rock Band via More Instruments and Vocals (All Platforms) @ Shacknews
Wii to Get PS3, 360-Type Graphics from Quantum 3 Engine? @ Kombo