Meet Smartbe: a smart, self-propelled stroller that moves with you as you jog and walk. It has 3 modes and keeps a safe distance as you move. The Smartbe stroller comes with a whole host of useful features, including adjustable frame & handlebar, battery charger, light signals, feeding bottle warmer, wireless speaker, safety belt wrist strap, and gravity center control system.
The above video shows how this stroller works. More information is available here.