I am considering coming from an iPhone 4 to a HTC Trophy basically because I want something different. I have had an iPhone on at&t until 4 mths ago when I switched to verizon thanks to too many dropped calls. But I have had iPhone since the first generation and would like to try something different. Windows Phone looks like something cool and different. How does the Zune pass work on the Trophy? That would be a pretty big deciding factor. Many of the apps I use on the i4 are on WP or are coming soon so that won't be that big of a factor. How is call quality on it? Can I change out the micro SD card to a bigger size and how hard is it to do that?