I was really surprised that the registration did not require an email address at all. It was just a small popup asking for a new username and password, after that the account was created. It is possible to upload songs only if you are logged into the site.

Anywhere.fm offers a separate client software to upload the mp3 files but also offers to use the web browser to upload them. The software is called iTunes uploader which is only compatible with iTunes. It can be lots of work if you do not use iTunes and have your music colection categorized in many folders. It is however possible to upload more than one file at a time using the web uploader if they are in the same directory.

The big advantage of Anywhere.fm over services like Grooveshark is the fact, that the mp3 files are stored on their servers which means that you do not have to stream music from slow connections. Every user automatically creates his own radio station. If someone else adds you to his friend list he can listen to the songs in his web browser.

There is unfortunately no way to create playlists or save songs from other users. Anywhere.fm offers a nice service that lacks features that many users would like to see. The ability to create playlists (radio stations) for instance from different friends.

It remains to be seen if they can keep the unlimited number of songs per users or will offer a subscription based service once they have reached the critical mass.