TrackID is just a program to know what is the title and the singer of the song. This application take a little bit of the sample sound and then send it into SE server. And then it will open a web browser where we can see the title and singer of the song. But we cannot record the radio.
But i think in Nokia, there is a phone that can record radio,(the one that i know is Ngage), but i dont know, maybe now every nokia phone can record??