[Tim Wood]

Originally Posted by curt.clifton

I would like to open a new document window from the script but can't find the right incantation (or else the scripting for this is broken).

That'd be option two =)

This was scheduled for public beta, but I've bumped it up and it should appear in 88489.

This works for me (including showing how to set up the initial window shape, since you mentioned you wanted to put the window at a specific spot):

tell application "OmniFocus"
	tell front document
		make new document window with properties {bounds:{0, 0, 500, 500}}
	end tell
end tell