As wrote in another topic ( Collaboration... from dwarfy ), I think it's very important to implements 2.5D particular metaphors.
So if you LG3D community members have ideas regarding 2.5D metaphors, shall we discuss them?
At first, I'd like to ask LG3D owners about them.
I feel think directly because owners are working on and thinking about LG3D's API almost all everyday.
Perhaps they had already had good ideas??