...but they require a big motor on the back of your shoe. Don't fret, fans of all things future. This is but step one in replacing the more economical, mechanically perfect shoelace technology known as Velcro. [Instructables via HackaDay]
If you look at the curve of laziness, these shoes are bound to become reality someday. speaking as a mechanical engineer, that servo could get miniaturized a bit, energy is minimal (could recharge via embedded solar panel). My only concern is having some sort of adjustment, like a spring lever so that they don't overtighten (imagine the lawsuit from ruptured blood vessels in the foot).
Only thing missing from this prototype is an embedded EL-wire nike logo that lights up when they tighten.