The original iPod nano was known for its click wheel design, compared to the newest touch screen counterpart.
The official statement from the companies support page states, “Apple has determined that, in very rare cases, the battery in the iPod nano (1st generation) may overheat and pose a safety risk. Affected iPod nanos were sold between September 2005 and December 2006.”
They further go on to explain, “This issue has been traced to a single battery supplier that produced batteries with a manufacturing defect. While the possibility of an incident is rare, the likelihood increases as the battery ages.”
Anyone that has the original Nano should follow the steps outlined by the recall information page and in return (unspecified length of time), receive a brand new sixth-gen version with full color touch screen!
The replacement program is still ongoing. To check and see if your nano qualifies under the recall click here.