I am probably one of the few people in the world who switched from an Android to a Symbian (a little bit of Maemo in-between) and then an iPhone. All in the same year. All three platforms have their strengths and weaknesses.
I am happy with my iPhone now. Thinking back, one of the big problems with Android is Admob.
- It slows down apps as the ad needs to be downloaded first.
- It takes away a lot of screen real estate in an already small screen.
- It sometime gives you really disturbing, pervy ads. Like this one.