For some reason I can't access the "EV Nova plug-ins" topic on this board, and I thought it had the potential to be a good thread.
I remember someone who has established a website providing a listing of upcoming plug-ins for all three flavors of EV. I know there is an editor, NovaBurst, that will be for OS X.
There is also my plug-in project which is early in development. You can respond if you are interested.
Rest assured, there are plenty of large plug-in projects for Nova under development.
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If you can't hear me back there, raise your hand.