[troyb]

I don't really have a good answer for getting data directly from Outlook on a PC to OmniFocus for iPhone.

If you're on a mac though, our desktop client does offer several import and export options including to / from CSV and import from OmniOutliner. You do not need to have a license for the desktop client, though you do need to be within the demo period.

I'll file a request in our tracker for exporting iPhone data.