Subscription?
They should implement the Napster software in the all-you-can-eat mode so that you can stream to the device, like Musicstation.
Musicstation is a good idea, but it's not well integrated into the OS on my N95 (e.g. when I have the phone on silent, it won't output to the earphones; standalone app) and the software constantly looks for a connection (i.e. you can't use it in flight mode or abroad) and can also take a longtime to download tracks even when in a 3.5g area.
It's a great idea and I would use it a lot if the software was a bit better.