Yes this is quite exciting, thanks for getting me on the bandwagon folks
Glen, you should take a look at APT...I've never experienced what you're describing. Of course, it will change settings on the camera if you select a different ISO from the menu, but not for the purpose of live view.
I tape a USB hub to my mount and run a single cable from the mounted hub to my laptop. Seemed like the least hazardous way of doing it. My next thought is to mount the USB hub to the scope rings and reduce the risk of cable snagging. I usually have 4 USB devices connected, so far.