Microsoft has been very careful about how quickly it brings the Windows Phone ecosystem forward, which has meant that some things that Android users might see as commonplace are just now starting to come to WP devices like 1080p displays and quad-core processors. Of course, with a well optimized platform and the design aesthetic of Windows Phone, the benefits of those new features may only be noticeable at certain times...Source: http://www.phonearena.com/news/Nokia-claims-it-didnt-need-1080p-or-quad-core-until-now_id48640
