http://discussions.apple.com/thread.jspa?threadID=642774&tstart=45
Paul Walker3 posted:
"Hi folks,
Further to my earlier update I've had a minor success...managed to get a Recently Added playlist to work...of sorts.
Anything to do with date orders as in "Match the following rule Date added is in last 30 days" the iPod nano doesn't seem to understand, or rewrites the playlist as it's added to the iPod.
So I tried unchecking the "Match the following rule" and just left the Recently Added playlist as "Limit to 100 items selected by most recently added" and it's worked...I have a playlist of 100 tracks that are in the order of most added on the iPod.
I know it's not ideal and possibly not what everyone wants, but maybe it's a start and maybe a temporary fix?
Hope this helps
Regards
Paul"