open iTerm drop down console on different screen
Solution 1:
iTerm2 Build 1.0.0.20130319:
Iterm->Preferences->Profiles->Window
From there you have a screen bar you can set to 'screen2' or 'main screen'.
Solution 2:
Crikey, I missed this all the time. But it's in preferences -> display -> drag the menu bar to other screen. I never realized (or cared to read the explanation text) that you could drag that menu bar.