The Tech Report crew seems to think that SteamOS and Mantle could ruin PC gaming. I'm not sure how they came to that conclusion but I'm sure you guys will have plenty to say on the topic. Now, all of a sudden, next year's gaming landscape looks to be shaping up very differently. Instead of three major platforms based on a common hardware architecture, game developers will face two monolithic platforms and a fragmented one—the PC—that will have two starkly different operating systems and three different APIs—Direct3D, OpenGL, and Mantle.