I'm afraid I'm too busy to really comment on these two items, but you should check out two stories from Radio & Records online this morning.
The first is good news, and certainly counter to my non-scientific polls and observations I make in my classes each semester. Apparently there is research out this morning which finds that young adults like to listen to the radio for music in their cars. So, amidst all the concerns that ipods and burned CDs are finding their ways in to the cars and replacing radio...perhaps some cause for a sigh of relief. Still, the important thing is for radio to remain relevant to that age group with its content.
The second item is more mystery likely surrounding HD radio.