[citation][nom]yoda8232[/nom]Where's my OLED armored suit? Think about it, make super camouflage with any surface (with the right programming) and be really strong..[/citation]
You could probably combine it with magnetic ferrofluids which harden instantly with electric current to resist bullet impact, and muscle wires which contract in response to electric current. So, we've got 3 out of 4 for the nanosuit, not bad:
Cloak mode-OLED screens, except this would be more like adaptive camouflage instead of true cloaking
Armor mode-ferrofluids and pressure sensors
Strength mode-Muscle wire
Speed mode-Muscle wires...moving really fast.
Now all we need is for aliens to invade North Korea.