“What most people do is count applications and decide the iPhone App Store is much better than the Android Market. What I have found, however, is that Android apps are less shielded from the hardware and the operating system, meaning that they may be able to do more powerful things (perhaps at the expense of security).
Adding to the difference is the fact that the iPhone App Store is closely guarded by Apple. Part of what Apple is guarding against is allowing apps that do things that might impinge upon the revenue streams of Apple and its partners. The Android Market is managed in a more open and freewheeling manner by Google. As a result, some Android apps are more user-focused than iPhone apps. There is very little that’s off limits.”