Because of the high quality of iOS and it's large market reach, Android development had to be rushed a great deal. This caused most of the programming power to go towards developing base features (android 1.x - 2.x) or implementing tablet features when the iPad arrived, and almost no resources were left for developers support (the emulators are awfully slow, severe lack of animations framework, etc...) and for bug fixing. Once things start to settle down, bugs will start to get fixed.