An Idea for Radio Stations?

Ever hear a song on the radio that you want to know more about? While KEXP and KCRW et al have real-time playlists, my old-timey car doesn’t have the internets available on the dashboard like some of those high-falutin’ new automobiles out there. So I was thinking that some genius out there – more of a genius than me – should come up with a way to send a text message to a radio station, and a reply would include the little snippet of information just like the online playlist would provide.
For those that don’t mess around with SMS, Google has such a service for things as varied as airline flight info, translation services, 411, travel directions and a whole lot more. I find some of those services really useful, and would get something out of it if this could be integrated with radio.
Any takers on this little trivial daydream?