Personally, I think an on-line radio for AO is a great idea. Though you may consider a prescheduled layout of what music genre will be offered at any particular time. I only say this do to the percentages of varying tastes being extremely close. I’m sure you have already decided some sort of measure.

I can’t wait to tune in and here what you have to offer, I’m sure it will beat listening to my drab collection of Mp3s.