Bob hasn't got an iPhone but some of his friends have. Surprisingly, straight out of the box, the iPhone won't play the MP3 streams that iTunes will happily play on a normal computer.
I'll be trying to fix this of course. I can't think of a more ideal end-user scenario than evolving music while relaxing at the park or beach.
There's a possible solution described on the forum. Once we have a fully tested working solution, we'll put it here, of course.