I find just stupid to have my music on the cloud when mobile phones nowadays got more and more 'disk' space.

Also, as someone said, 3G is not free.

I think docs on the cloud is a good idea because I could *need* a file somewhere I do not have my work computer (for example).

But I don't think I could *need* a song to listen anywhere. And if that is the case, 99% of the times I'll just find it on youtube.