I got this awesome idea of a project i unfortunately don't have time and skill for right now but if anyone is interested, feel free to use it!
What if you could view the real world in a third person perspective just like in games? You would need you kind of flying probe (a quadrocopter for example) with a camera and some positioning system to align itself in the right way compared to yourself. Also, you would need some glasses with screens on.
The probe could use a system like the Wiimote to receive the position of yourself. And the parts you wear would include an electronic compass so the probe can always stay behind you.
Now wouldn't this be really cool, just to try and see what it feels like?