Apparently smartphones are now beginning a similar battle which playstation and nintendo and other game systems used to share. They are creating exclusive games and apps in order to attract buyers. Both Apple and Google are trying to get developers to signs contracts and get them on their side
“The Cut The Rope series followed a similar pattern, while Gameloft, the company behind titles like Asphalt, had apparently discussed the exclusivity angle with Apple, but eventually decided to launch on both Android and iOS at the same time”. Neither Apple or Google has successfully really locked down and contracts with these companies and I hope that they don’t. There are already a few apps and car accessories that are only compatible with either android or apple.