Because being sucessful on mobile is about creating the entire experience. If any other manufacturer created their own platform on Android, they wouldn't have t

Because being sucessful on mobile is about creating the entire experience. If any other manufacturer created their own platform on Android, they wouldn't have the Google apps licensed to them, and consequently wouldn't look as attractive to consumers. Gmail, Google Maps, thousands of apps on Google Play, all these are valuable assets that consumers wouldn't be willing to give up. Amazon is in a better position than most but they haven't yet created a general purpose device. All their tablets are a window to purchase more Amazon stuff. If they could create an entire ecosystem with a proper device to back it up, they could probably up-end Google. But slowly, Android on tablets is taking off now. I mean, Google recently released stats for number of tablets activated daily, which they hadn't done until now. Maybe that's because Google feels Android tablets are finally making a dent in the marketplace.