[whpalmer4]

I just created a project with 399 actions (the numbers 1-399) and synced it to my iPod without difficulty or loss. This suggests to me that there isn't a fixed limit that you are encountering. Are you doing the same sort of display in both places? I would use the Search function on the home page in OmniFocus to search for one of the "missing" items and see if it turns up or not. I'd also try syncing both Mac and iPhone one more time (in that order) if the missing data isn't revealed in the search.