It's all about dee tunes on DTunes!
Ok, now that I got my shoddy pun out of the way, let me tell you about DTunes. If you have issues with copying music into your iPhone from iTunes, or just don't have enough memory space, this app is a wonderful solution. It will pull music from your Dropbox account, and allow you use it as a normal music player (as long as you're connected to the internet). Super useful, and today it drops from £0.69 to FREE!