If you've ever wanted to have Gem be full screen on the primary screen, I have found a way. It's called "LSUIPresentationMode". Basically, using Property List Editor.app, open Pd-extended.app/Contents/Info.plist. Add a "New Child" to "Root". Call that node "LSUIPresentationMode", change the data type to "Number" and set the data to be "4". Then when you launch Pd-extended.app, the Menubar and Dock will auto-hide themselves.
Here are some other modes:
http://developer.apple.com/documentation/MacOSX/Conceptual/BPRuntimeConfig/A...
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