iFixit has disassembled the 4G iPod nano and the 2G iPod touch and unexpectedly found Bluetooth in the iPod touch.
iFixit 4G iPod nano Disassembly
iFixit 2G iPod touch Disassembly
At the top of the picture above the battery is a metal cover. Underneath the cover is a Broadcom BCM4325 Bluetooth chip. Yes, that's right, Bluetooth! Apple has said nothing of this publicly.
This particular bluetooth chipset supports BT2.1+EDR. No word yet on whether the one Apple included supports A2DP, which would enable stereo headphones.
iFixit 4G iPod nano Disassembly
iFixit 2G iPod touch Disassembly
At the top of the picture above the battery is a metal cover. Underneath the cover is a Broadcom BCM4325 Bluetooth chip. Yes, that's right, Bluetooth! Apple has said nothing of this publicly.
This particular bluetooth chipset supports BT2.1+EDR. No word yet on whether the one Apple included supports A2DP, which would enable stereo headphones.