Orbit stroller has the most close features to my project. It uses one hand to fold the stroller and one hand to carry/ scroll the folded stroller and one hand to carry the stroller carrier.
The seat can be rotated 360 degrees, reclined and it available in many colors. It is the combination of the baby stroller, baby car seat and baby carrier.
The orbit diaper bag storage system and the brakes are separated (on both wheels).
A new Orbit with double seat, still using the same frame and buy extra seat, wheels and handle bars.
Sources : http://www.orbitbaby.com/index2.html