Just an FYI, as far as auto/truck design, stuff is decided years before it is "announced" to the public. I am working on things for the 2016 model year and beyond you have not seen or heard anything about.
Gm had composite beds years ago that would take a heck of a beating but the demand wasn't there at that time as well as the Denali truck rear wheel steer which if I remember right possibly only sold 8,000 units.
At least they didn't copy the $1500 spark plug change and the 6.0 mess. They all have their share of problems, none are perfect. To say one or the other announced something just because the other did like it was just thought up yesterday is ludicrous. I knew about aluminum trucks in the works a looooong time ago, and not just Ford or GM's.