I have a brand new sealed Ipod Mini dock. I am lead to believe that they work well with the Nanos (apart from the phat 3rd gen ones). Obviously that risk is up to you, but as the connector is the same, I can't see why it wouldn't work.
This is brand new, and unearthed from a house move box that we had forgotten about. It was purchased for my wife alongside an Ipod Mini (not as part of a bundle!), shoved in a box and never used again.
This is brand new and sealed. I will not open it because obviously it is in factory fresh condition
BT please - postage included