Fred Wilson writes: "... The radio dial of 2010 is not going to look like the radio dial of 2005. ¶ You've got 100 channels of XM, 100 channels of Sirius, you've got HD FM which will allow as much as 5 channels of programming for each fequency on the dial using multicasting technology, so that makes something like 75 channels of HD FM, and you've got HD AM which will allow music programming due to improved sound quality. ¶ So that's like 300 channels of audio instead of 15. ¶ And the radios will be tri-mode by then and who knows if Satellite will stick to its paid model. ¶ My bet is that we'll see a hybrid model where some of the satellite channels will be free and ad supported and others will be paid. ¶ I suspect the same will be true of the mulitcasted HD FM stations. ¶ So radio will look like cable television, with a huge amount of choice, most free and ad supported, some paid and advertising free. ..." Link: A VC.
Also see Raghav Gupta's commentary on this in The Evolution of Radio. Link: Rags' Soapbox. --Dennis