Not all internet streams are 128kbps. And some channels are much higher than 50kbps while some are that low. Why do you need CD quality weather reports?!
Anyways, there is an option for windows mobile devices, but the way it is setup, you need enter one of those character pictures. And it times itself out after a while and you have to re-login.
It is pretty annoying to say the least. But it is doable.