I read somewhere (I think on Slashdot) that it's possible to clone subscriptions for XM. Yeah, I know it's illegal, but still sounded interesting. Just wait until this catches on and people start cloning them over and over again. I wonder if XM integrated a way to monitor how many connections a given subscription is making at once.

The guy that discovered it only did it because XM makes you pay twice if you want to have it in two cars. I think that's kind of stupid.