How long have remote controlled tugs been used?
Several years
Also is it only Virgin who use the rear door to embark/disembark the passengers in the rear of the aircraft instead of via the airbridge? Not so easy climbing the stairs with unchecked luggage.
No, pretty much every other airline. I think even Qantas did a trial for a bit, not sure how that went.
But of course if your carry on luggage was the correct weight and dimensions it wouldn't be a problem, right? ;-)
morno