Cnet has an article on how the mobile networks are fighting over the format used to stop copying of mobile music. Now I know that a few legal guys are looking at the mobile carriers as ideal cases to suit for P2P.
I have been watching the development of mobile music for quite some time, ever since a scientist in the FT Labs showed me what MPEG7 was all about. The solution will only come once we have developed a usable standard that is just that something used by everyone regardless of device/platform.
I for one don't think that Mobile Music will be something that works for me because I am just not interested in the current pop music and the Networks don't think that someone like me would be interested enough to pay £3 for a Paul Weller ringtone.