Bye bye Windows Phone, Hello iPhone!!
I always hope that Microsoft can do better than this but it looks like I hope too much. Even until now, Microsoft Windows Phone 7.5 or what Microsoft calls "Mango" as a codename can't really even compare to iPhone in just a very basic function.
At the time iPhone first released in 2007, I thought that iPhone will not success because of many things. Some thing like
1. Poor battery performance that you can use it for just a single day compare to many phones at that time that can be used at least 3 days or even a week.