Bestsellers: This app got some cool idea, but wrapped in Advertisement in a way that it become the “Adware” app. There should be a strict standard, and there should be an alliance I would say “Microsoft, Google, Yahoo & Apple” (and for most of the people thats pretty much about Computer & Internet is. :-P ) . The Ad should be of specific size, and the appearance or impression should be limited or with some standards. Else it will kill the real purpose of application and the user-friendliness.