Is rooting phones a hassle for you? Do you want to root somebody else's phone (whether they're willing or not), but don't want to deal with that whole pesky "getting permission" part? (Or dealing with teaching them how to go about doing it?)
A new app over at XDA by wchill may have you covered. I say "may" because it's still in a very early beta stage, but the response so far from the community has been pretty positive.
Root Transmission requires three things: 1.) a rooted Android device with USB hosting capability, 2.) a USB OTG cable, 3.) a one-click rooting script for the device you're trying to root.