Invisibility is at the top of the list for desired superhero powers, and it's obvious why. There's something so stealthy about see-through gadgets and gizmos. Check out the invisible innovations here, from invisible underwear to imaginary pets.
Implications - Invisibility is something that definitely interests a lot of people. Ever since Harry Potter came out, many people have been raving about magic and Potter's invisibility cloak. Any item that seems almost magical is going to be scooped up by people who want to feel like they have something powerful, cool and unique.