Noticed Pandora on the Go while listening to Pandora just now. $3/month, on top of a data plan. It'll be interested to see whether this erodes the resistance to subscription-based models vs. "owning" (right...) your songs. If so, it would be ironic that a subscription model without much choice is what did it. I have very little perspective on these things, as subscribing to Pandora on my mobile isn't really my idea of fun.

Ari