[whpalmer4]

My project notes needs aren't generally too extensive, so I store them in OmniFocus, as the project's notes field. Indexed by Spotlight, and no need to involve other apps. Supports rich text formatting, so I can copy and paste to/from other apps and retain most formatting.

From what I recall of the script you mentioned using OmniOutliner, it might not be all that hard to retool it to use another app.