[Ken Case]

Originally Posted by micamou

Is there a public API to access OF's actions from another app?

There certainly is! Every attribute of the OmniFocus database should be exposed through our AppleScript interface—which is available through AppleScript itself, of course, but also any language which easily bridges to AppleScript (including Objective C, python, and ruby). This is how we wrote our first iPhone web interface during the OmniFocus beta (before there was a native iPhone SDK).

We've included several sample scripts inside the OmniFocus app itself, in OmniFocus.app/Contents/Resources/SampleScripts. For example, there's a "Publish to iCal" script in there which seems particularly relevant to this thread.