Apparently the interface isn't just compatible with the iPod, but Sirius radio and HD Radio (whatever the heck that is) as well.
I think it's well acknowledged that one of the areas in which podcasting is very much like radio is that the commute is a prime listening period. In fact, many podcasters purposely make their shows 20 minutes long to fit in with the length of the average commuter's...well...commute.
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