[nDRDY]

Given the current state of battery technology, this is probably the only possible commercial use case. Even then, you have serious limitations like low passenger capacity, takeoff/landing still requires a helipad, recharge time, and the questionable safety in the event of motor or hinge malfunction.

[jmward01]

And once this gets in use improvements will lead to bigger, longer range, etc etc etc. Batteries too are rapidly improving and this will push more emphasis on that. The first Write flyer couldn't do much either.