We've already posted about Delta setting up iPads for customers to use, but the company may be making different use of Apple's tablet in the future. It's testing Apple's iPads out as "Electronic Flight Bags," or EFBs, which as far as I can tell are the documents and folders that pilots need whenever they jump in a plane to fly it somewhere. Delta's loading up iPads with GoodReader, as well as PDFs of the airplane manual, the flight itinerary and pertinent