48 hour turnaround time for Prototypes!
If you haven't submitted it yet, then it is basically "private".
Not quite. If you go to check out your geekbuddies' activity, a geeklist in draft but not marked private can be read. Twice I inadvertently posted on a geeklist before it was submitted like that. Best to mark private until right before you submit it.
Hence my later clarifying comment:
If you didn't have that option checked, I might possibly stumble across it if I happened to type in the exact address, or if I was subscribed to you.