Desktop marker and smartphone software markets are very different. There are many more small utility apps for the smartphones for example, while desktop is more open. Discoverability in particular is a huge issue for a small desktop app developer. I don't think comparing to desktop is a good example. On the other hand, desktop app market does illustrate the point I am making — big corporations running their own "stores" to the user disadvantage. And don't let me start about horrible installers that companies like Adobe or Microsoft ship which will change your system configuration and litter your filesystem with random crap.