Well, you mean two cables, right? One for power and one for data.
Nope, I plug my monitor power cord directly into the UPS, not into my computer.
And you're still going to have a computer between the camera and the storage drive* to negotiate the connection, unless you have a proprietary match.
Again, nope. Firewire over Thunderbolt can negotiate transfers between the devices directly with no intermediate computer, just as Firewire itself can now.
*Why on earth would you have a local storage drive on your desk if you're fussy about cables?
Because a portable drive is the easiest way to transfer large volumes of date, of course. Also for security reasons sometimes you have to take data with you physically, when you leave and put it in a safe.
I might also mention this is finally a published industry standard not tied to any one vendor that can work as a docking port for laptops, basically making traditional docking stations no longer needed.