[Toadling]

I'm just guessing here, but I wonder if the *entire* OmniFocus database gets copied to the iPhone even though OmniFocus for iPhone only displays a subset of the data (e.g. no "on hold" actions, etc.).

The thing that make me think that is OmniFocus for iPhone seems to be aware of the number of remaining actions in the Project view, including actions that are in "on hold" projects, even though it doesn't display all of them when you drill down. Or maybe it just counts them ahead of time and displays the totals in Project view?

If, for whatever reason, the entire database does need to be sent to the phone, then a separate archive database makes a lot of sense to keep the size of your main database at a reasonable level.

-Dennis