Is Apple blurring the lines between radio, music streaming, and podcasting?

Apple announced this morning that it has launched two new “radio” stations on Apple Music: Apple Music Hits, and Apple Music Country. Apple is investing significantly in its Radio product, with major stars and shows that are part talk radio, part Casey Kasem, part podcasting. An important question for stars to ask, however, is how broad an audience they can get by focusing on a single platform versus allowing their shows to appear on every platform simultaneously.  Or ... if they’re better off opening up their content on a freely available service.