DotM: Jetfire's armor returning

Just something I noticed during a repeat viewing of the 3D trailer...
http://www.youtube.com/watch?v=zuvU_BywPs0 skip to 2:20
We knew Optimus used a jetpack at some point, but now that you get a better look at it you can tell that it's the extra armor he got from Jetfire in RotF. What clued me in:
1. The shape of the thrusters and wings
2. The machineguns he's firing. Optimus normally doesn't have machineguns in his arsenal.
Of course it also looks like the armor was refurbished and given a more stable fitting. The situation at the end of RotF called for hastey repairs after all. Still, glad to see Jetfire's sacrifice isn't being forgotten.
http://www.youtube.com/watch?v=zuvU_BywPs0 skip to 2:20
We knew Optimus used a jetpack at some point, but now that you get a better look at it you can tell that it's the extra armor he got from Jetfire in RotF. What clued me in:
1. The shape of the thrusters and wings
2. The machineguns he's firing. Optimus normally doesn't have machineguns in his arsenal.
Of course it also looks like the armor was refurbished and given a more stable fitting. The situation at the end of RotF called for hastey repairs after all. Still, glad to see Jetfire's sacrifice isn't being forgotten.