I bought a fourth-generation iPod Shuffle with the hope of being able to download MP's into it from a Logitech Revue. I sideloaded the TinyShark Downloader application for this purpose. This application is able to sync with the extensive music catalog of Groove Shark. Grooveshark - Free Music Streaming, Online Music I also downloaded ES File Explorer. I did find songs on an SD Card in ES File Explorer, from TinyShark, but couldn't seem to download them into the iPod. Yesterday, I went to a CyberCafe to "unlock" the iPod. I recently purchased it and was getting the message: "you must sync the device with iTunes". I did download two songs on to it to verify that it was open/unlocked. Strangely, one song disappeared while trying to download an additional one with the GTV. So I've got a list of 400 MP3's and will have to put them in the "My Music" folder within Groove Shark (or another service). Then revisit the Cybercafe and download them from there. I was hoping to at least be able to "manage" what I have within the iPod, like deleting a song, but I don't have that capability either.