Apple iPod nano (7th generation) review - The Gadgeteer
Apple iPod nano (4th Gen) 2.0" Purple 8GB MP3 / MP4 Player MB739LL/A - Newegg.com
Useless life hack: Don't want to Bluetooth mod your iPod but still want wireless music? Just plug in an iTrip, buy an iPod Nano 6th or 7th gen, then tune the radio
Apple iPod nano® 16GB (Blue) Digital media player with FM radio and video camera at Crutchfield
iPod Nano - Wikipedia
iPod Nano 4th Generation Teardown - iFixit
Apple iPod nano 4th Generation Silver (4 GB) for sale online | eBay