Windows Phone 8.1 Initial Experience

After having used Android for last few years, I finally decided to switch games and try my hands on Windows Phone 8.1. My official work experience has been mostly on Microsoft and Windows and I have closed followed the development of both Windows 8 and Windows Phone 8 and then their newer versions and have written my share of white papers on it as well (till last year). One of the main reasons for staying away from Windows Phone 8 or 8.1 so far had been the lack of availability of various app...