Yes MP4 Nation did sell them under the former "iSlim" brand, but the admin decided to remove the iSlim and Bullet MP4 players from MP4 Nation.
It is interesting that probably two different manufacturers make 3rd gen iPod nano clones, one was the normal one (which MP4 Nation used to have) with your basic 5-pin mini USB port and another one is a complete copy of the iPod nano exterior
(still using Actions chip and push-buttons), even copying the iPod 30-pin connector and main menu style.
Normal 3rd gen iPod nano clone:
Wannabe 3rd gen iPod nano clone:
_________________My primary device:
Apple iPod touch 8GB (2nd generation) with iPhone OS 3.0 software update (jailbroken with redsn0w)