Now this is a bit weird, this probably a unique iPod accessory. Thinklabs has released a stethoscope recording package that works with your 2GB iPod nano, the XtremeMac MicroMemo iPod recording unit, and a ds32a Digital Stethoscope. This setup allows physicians to record and playback heart sounds. Besides that, you can always disconnect the recorder from the stethoscope to record other thing. This entire kit is available for $495 together with iPod Nano.

[via Ubergizmo]