On the off chance that you need further evidence of mobile gaming's rapidly changing landscape, IDC and App Annie recently released the results of a study demonstrating that revenues for iOS and Google Play gaming rose sharply in 2013's first quarter. Revenues for the handheld gaming devices made by Nintendo fell during the same period. Google's still behind Sony and Nintendo's overall revenue for the time being, but with the rate of growth they reported during their recent I/O, it's expected that Google Play, too, will overtake traditional handheld gaming devices sometime during the next quarter.
John Carmack has created some of the greatest video games of all time. He's helmed successful companies, has more than twenty years of experience in the video game industry, pushed the boundaries of iOS gaming with the recent release of Rage. Oh, and he also moonlights as a rocket scientist as the lead engineer of his own aerospace company, Armadillo Aerospace. When this guy talks, people listen.