Banana is not the same as R.C. that NS uses. Entirely different technologies. And will ride quite a bit different from what i've heard as the banana tends to be very loose and floaty because of its design.
Banana is shaped like a banana(obviously)
Never Summer has some camber in their design..think more like a recurve bow of sorts.
But yea i think the Heritage is always limited quantities, but they are beefing it up with their new Carbonium tech. Theres a PDF of their lineup somewhere here on the forums.
Lib tech's answer to NS's RC is their C2 Power Banana which is more or less the same, although i am sure there are subtle differences to avoid patent infringement. Although i am sure the boards still ride quite differently due to how and whats used to make them, where the carbons put, etc.