The company who supply Internet Radio to Marantz and other seems to be having some "issues". After a service outage, Bose switched to TuneIn causing the vTuner CEO to get a tad annoyed! vTuner gets cash from the manufactures for each device sold. They seem to be switching to an annual charge for the user (or maybe both), which may well be a more sustainable business model.
I think the vTuner is currently $3 per annum.
Personally, I think it would be preferable to allow the user to select their own choice of radio supplier, much as we do with music streaming.