Scientists and engineers appear to have created a superior artificial limb which may hit the market as early as 2011. They used the behavior of ants to model algorithms which (apparently) closely mimic how nerve impulses travel across the human body. The result is a limb which can be controlled with the same neuron paths as the original. In other words, according to these guys anyway, if an amputee can still feel a phantom limb, this new system will use those impulses to control an artificial one.