The guy that owns the (self-proclaimed) best page in the Universe 
comes with the perfect solution to balance a two-wheeled scooter without a gyroscope and other expensive hard and software: just add an extra third wheel.
“Amazing! In fact, the only thing this revolutionary new model requires from the old Segway are the motors, gear box, wheels and batteries. Throw the rest of that shit away. What’s the point of all this technology if it costs a fortune? ”