Pete, Thanks for your detective work on this. I think I've run into the same problem. I have an Applescript that changes note tags and then moves notes to different notebooks. Notes treated this way haven't been syncing correctly between my two Macs, particularly with respect to which notebook they're in. I'll try adding a delay to my Applescript to see if that fixes things. I'd love to hear something from the Evernote folks on this, but my guess is that Evernote + Applescript users are a pretty small slice of the user base, and they've got bigger fish to fry.