Windows Phone 7 apps are coming in day by day in the WP7 Market Place and users are quite confused because a lot of the new upcoming apps are paid, some even more than five bucks as compared to Android and iOS. Dark RSS Reader, is a free Windows Phone 7 RSS reader app available in the Market Place.
So users wont have to re configure everything, once they switch to their device. All the settings will be updated automatically no matter what. Its a free WP7 app available in Windows Marketplace.