The openness of PC means that a second app store can exist and be successful on the Windows platform. If Google pulls this off, we might see a credible, large store of casual games on Windows for the first time. Right now, mobile shines for casual games and sees the bulk of investment for casual games. It would be a great boon for many casual gamers to be able to switch devices and carry over their games to the PC to play it on a larger screen, possibly with a controller.