Pioneer has debuted two iTunes Tagging CD Radios that work with FM RDS and HD Radio.
The DEH-P710BT and DEH-P7100BT include built-in Bluetooth and USB direct control for iPod. Using RDS data, users can tag a song from FM radio or to have its metadata saved to an iPod. Users can then plug the iPod to a computer to see a list of tagged items in iTunes for purchase. When connected to an HD Radio adapter, the unit can also tag songs.
Slated for spring availability, the DEH-P710BT and DEH-P7100BT will list at $360 and $340 respectively. See how Pioneer is promoting the tagging and HD Radio features here.