http://www.itnews.com.au/News/296907,rio-tinto-prepares-mine...
The US military is also pushing remotely driven supply vehicles.
Then the next market is trucks on highways.
It's a bit like rail. People are obsessed with passenger rail but tend to ignore freight rail. For instance, how many people know that the US freight rail system is excellent?
I've done it myself in a passenger car on long trips -- once covered most of a state at high speeds behind a truck who seemed bent on making his schedule. 75+ MPH and my fuel consumption was well below typical for that leg of the trip.
Maybe we went through something similar when digging machines replaced people with shovels.
The main difference is instead of requiring the coveted commercial drivers license plus or minus hazmat certs, you'll have a grunt laborer who optimistically knows how to count in english and can handle a pallet jack and/or electric forklift.