Cloud music services, which enable you to stream music from the internet to your computer or phone, have been around for a few years. (newscientist.com)
In the music section, for example, you have a tab for local and a tab for cloud music. (pocket-lint.com)
These days the lack of memory is not the largest of concerns, thanks to the cloud storage options bundled with the device and alternatives such as Amazon Cloud Music Locker, Google Docs, Spotify, and others. (goodereader.com)