After reading a review on iClarified regarding the Amazon Cloud and Player (which stated that it would work for the iPhone 4, just ignore the statements about being Android), I did just that, and set up my Cloud Account by purchasing an Erik Satie album, and telling the system to download my future mp3 purchases to the Cloud Player. I saved the music/player as a Safari page, and had thought that new music added would appear on the Player, but alas I must have goofed, because new selections do not. Has anyone out there tried it on the iPhone? Am I missing something? Thanks gang!