Well it really depends what you want in a player… The iPhone by itself is an amazing player, but if you would prefer to have the two separate, I would suggest the Zune 8GB or the Zune 80GB based on how much space you would need for music and videos and such. The Zunes also have built-in radio which is nice (I dont believe the iPhones have that, or I dont think you can even buy an attachment which will add that functionality). You could though, theoretically, visit an online radio station using your web browser on your iPhone, and I assume that would play just fine.