[curt.clifton]

I get the same thing for open. I can get the 'make new inbox task' command to work on the QE window. Select and save also work. I opened the QE window using the hotkey, then ran this script:

tell application "OmniFocus"
	tell quick entry
		make new inbox task with properties {name:"foo"}
		select tree 1
	end tell
end tell

That part works. I'm guessing that Tim might have missed one commit before heading out so that the open command isn't implemented. I'll report via Send Feedback.