I am reading today's article : Fun For $40,000? Electric Plane Beats Electric Car Every Time... Then it dawns on me: How about Tesla provides the battery power system and other vendor make the rest of mechanic components to assemble the Electric plane? To expand the thought, how about Tesla provide various battery power system that can power different products currently rely on gas: like Motorcycle, heavy machinery in construction, or even mower gardening tool?? The system should include the packaging, thermal control, any IP that adds on to the raw battery. I am not vested enough to explore this idea. Anyone like to continue on this? Or is there similar idea discussed? Come to think about it, 'Powered By Tesla' is a cool slogan that you can place on a product!