use of electrical sliprings

[dradius]

Hm. i wasnt specific the last time, so let me reformulate my question:

through the use of this years game's rules, could you use an electronic slipring (something similar to what's found here: http://www.polysci.com/SlipRings/slipring.html) for control of an omnidirectional drive system?

i know the current cant be conducted through the frame of the robot, and there are simpler ways to pull off wiring an omni (ive done it already) but i want unlimited rotation if i were to place a motor ON the wheelbase.
i know there are chain and mechanical configurations that negate the need for motors on individual wheels, but i want to further experiment with the idea.