There are plenty of cloud services available for a range of different purposes. For example, if you want to use Office applications you could use Google Docs, or Windows Live Docs. If you wanted file storage you could use Dropbox or Mobile Me’s iDisk. But there hasn’t really been a good way to listen and store music in the cloud and have it easily accessible. mSpot is going to try to fill that void with their free cloud music service now open for everybody.
The thing that differentiates mSpot from, say, Last.fm is that you upload your own music, which can then be streamed from anywhere. The way mSpot works is that you download their software and create an account. You then choose where mSpot will upload your music from, say for example, your iTunes or Windows Media Player libraries. Or alternatively you can watch folders on your computer. The mSpot uploader then automatically updates your library when you add more music. Be careful how much music you choose though, as the free limit is 2GB, with more beefy plans ranging from 10-100GB available soon for a monthly fee.
My experience with the service was a delight, with music streaming quickly and playing without any stutter. The one thing that may turn away some users is that your music is compressed to a small 48kbps AAC+, probably to bring down bandwidth costs and make music playback buttery smooth. Another downside is that, while the site works on almost any desktop browser, mobile playback is currently restricted to Android devices, with other mobile platform support (including the iPhone) to come at a later date.
Overall the convenience of having your music collection anywhere far outweighs the negatives. You can check out mSpot here.