Man has always dreamed he could fly, and not just in an airplane. I can think of the possibilities, including, but not limited to, being able to go somewhere as the crow flies. You could also get some sweet pictures. Until Star Trek's teleportation technology gets here, this is about as close as we can hope to get. Of course, there are a lot of examples of really bad jetpacks out there, but here's one that shows some promise. Strap a V-4 and a couple of turbofans to your back, and you're in business!