This deal has ended.
Apple.com has inventory of refurbished models of the previous generation 8gb black Nano for $149. The 2nd generation Nano is 0.26" thin and comes with the exact same one-year Apple warranty that a new iPod has. The newer 3rd generation Nano is available at $149 for a 4GB silver model and $199 for the 8GB model (available in five colors). Shipping is free from Apple, though sales tax is charged to most states. Apple's shipping deadlines are Midnight EST 12/19 for free ground and Noon EST 12/21 for overnight.