i can't say i'm surprised.<p>my experience with apple customers is that they more freely spend money (or perhaps i've got the causation the wrong way around? ;)), so it's no shock to hear they're more likely to make small purchases like 99c apps and such.<p>also, most people are familiar with the itunes store, the app store practically follows the same steps as it does. honestly though, i have no idea how buying apps on android works, but given that a lot of people already have the means to buy music from the itunes store, the level of effort required to make a purchase, i'm going to bet, is less than that of android.