Wireless is simply not fast enough yet. Now that I am shooting with a D3X (24 megapixels) and D800E (36 megapixels) it would be even slower.
Attached are three images of my mobile rig, shot one night at a law enforcement session. I initially tried a clamp on the tripod leg to support a tray for the notebook computer. It simply wasn't stable enough. It took about a year of trial and error to come up with the current configuration, which has been used many times with no problems.
The Manfrotto studio dolly came with different wheels, and I exchanged them for the ones seen in the image as they were a bit softer. I can roll the rig around rough parking lots, streets, and sidewalks without worrying about excessive vibration.
The tripod is a Gitzo carbon fiber. The accessory arm is Manfrotto. The ball head holding the camera and the L-bracket are RRS. I don't remember where the trays came from, but several companies offer them. The notebook computer is held in place on the tray with a long strip of Velcro. The mouse is wireless.
The battery is a motorcycle battery in a battery box, and was custom built for me at a local battery shop. It includes two outlets, charger cable receptacle, is fused, and has a digital meter for checking voltage.
Hope this helps a bit.
HBB in Phoenix, Arizona Nikonian Team Member
Photography is a journey with no conceivable destination.