Here's an interesting conundrum: when you stream music to your Windows Phone 7 device using the Zune Pass (a great feature, by the way), you can't really stop the music--you can pause it, skip or rewind it, but not stop it. While pausing and stopping seem the same, they're not. Here's why:
Example: You want to stream music via your Xbox or Zune desktop software, after you streamed via your phone for awhile. Say, after you got home from a long day at work.
What happens is you get the message you see in the image above. Fair enough. We understand about DRM and why you can't have multiple devices sharing at the same time. But here's the thing, even if you "paused" the stream on your phone (remember, you can't "stop" it), you still get that message above. The phone, evidently, keeps the ping alive to Microsoft's serves for "X" time. The only way out of this Catch-22 is to power-cycle/soft reset the phone. Restarting the desktop software sure doesn't work.
Odd, eh? We can't too hard on Microsoft, after all they did pull together quite a crazy system here. But still, we hope for the sake of you streamers out there, they find a way to fix this. Now pardon me, I have to go power cycle my phone after this post :-/
Thanks, anonymous, for the tip!