News Shooter | NAB 2013: Scorpion King Chariot low angle dolly and monopod
Unsure if I'd want to get this device myself. I don't shoulder-mount DSLRs much anymore; I'm suspicious of trackless dollies (any unevenness in the floor, and you'll notice it); and I already have a couple other monopods, so...
Trying to think of other "hybrid" devices, for interest's sake, apart from the new Steadicam Solo... There's the Manfrotto Modosteady (tabletop tripod, shoulder mount, steadicam). There's the Modogrip on Kickstarter (add handles and wheels to convert your monopod into a dolly/thing with handles). There's the You Pod (fiddle around with joints to configure it as a shoulder mount, low angle tripod, basic steadicam, etc). And I'm fairly sure I've seen combination slider/shoulder mounts before, but not sure which company makes them (perhaps Glidetrack).