I don't think the current issues with tablet apps on Android are due to fragmentation and something about Android lacking quality standards. The tools to create

I don't think the current issues with tablet apps on Android are due to fragmentation and something about Android lacking quality standards. The tools to create a robust, good looking app on Android are the same tools for all devices and the Android team at Google has done a tremendous job in creating (and still improving) developer tools to handle so many different device types. A large part of the issue has to do with the low adoption rate of tablets to date on Android and a general lack of focus on polish for Android apps. Ultimately the developer community and business haven't gotten behind Android in the same way as iOS and the result is apps that aren't well thought out or are missing support beyond phone-type devices.