What could be the key features of the WP7 app? First of all, the app can make use of LiveTiles, which would differentiate it from apps for other OSs. What we would be glancing at in the tile is an open question – it could be posted images, comments, we are yet to see. Second of all, with social network integration being a key concept in WP7, it would be a nice addition to have the blogging platform join in for a unified experience.
source: Blog Herald