11. Radio. The fourth-generation iPod nano works with the prior iPod Radio Remote accessory, and now includes a feature called Tagged Songs, which can tag songs you hear on the radio for later purchase through iTunes. FM radio tagging has recently been touted as a new built-in feature in Microsoft’s Zune; Apple previously supported HD Radio tagging, which uses a less popular form of digital radio tuner and has required dock-like radio hardware.…
