They've done it again with the new Sonos S1- broken an app that worked. Problems with Mac iOS wifi, can't connect to radio 'A problem occurred, try again'. When you want to change favourites, you get 'A problem occurred, try again'. You can, however, open the Mas OS version, select a radio program - a bit of a hassle. Unfortunately, you can't go back, but have to wait for Sonos to find a new developer.