Now that we have a fuel/ammo system in place for planes I think this would be a really useful thing to have. Homeworld had this feature for the strike craft. If you selected a bunch of fighters and pressed the d button they would all automatically dock and repair at the nearest carrier. For spring they would have to fly to the various repair platforms and back, but it would basically be the same thing.
Also, if anyone wants to do this could please look at the code for the aircraft landing on the repair platforms while you are at it. There is a nasty bug in there that makes planes circle the platforms indefinately if their crusealtitude is set to around 450 or higher.