Amazon’s Cloud Player
External Image as a way to have access to my music library from any location, and so far I like it a lot. There’s an Android app available free from Amazon; hopefully, an iPhone app will appear soon as well. Right now, Mac/iPhone/iPad users can only play music through a web browser interface, but it still works very well even over a 3G connection with an iPhone.
All Amazon customers have immediate access to 5GB of cloud storage, useable for music or other files. But there’s a very cool promotion now going on that gives you a free 1-year upgrade to 20GBExternal Image
A very nice touch is that any music you purchase at Amazon is automatically stored in the cloud, and doesn’t count toward your usage. And you can download it again at any time, just as you can with books purchased for the Amazon Kindle.