Thunderbolt has the potential not only for linking drives, displays, and other hardware... but could act as hyper-speed ethernet if routers are adapted to have a TB interface, and therefore an intranet portal too, and myriad other roles could also be covered. Like any emerging technology, it's not going to be readily adopted though.
USB-III is a joke. It barely offers anything in advance of hotswappable eSATA, and there are still relatively few peripherals which offer
driver friendly functionality. I thought we were going to see wireless USB at some point; yet it's never seemingly got off the ground at all yet.