This forum thread has a comitragic interplay between nice people and assholes, but an interesting idea (which seems to be to "touch" all the files although it is unclear if this is meant to be done on the host computer between synching) and some recommendations.
https://discussions.apple.com/thread/2696709?start=0&tstart=0
The recommendations are for NoteMaster and Evernotes. There's some question about whether Evernotes charges a monthly fee or not.
