ZipShooter it has wheels it has a Kickstarter:
ZipShooter was built to have a diverse range of uses – which means it can support a wide range of camera shapes, sizes, and weights up to 20lbs.
It can serve as a linear dolly, a curved dolly, an under-sling dolly, and can even convert into a variety of hand and shoulder support rigs. Not only that, but ZipShooter will fold compactly into virtually any gear bag.
Please see ZipShooter for more.