I would love it if a future version of the Prius integrated the GPS with the energy management software. For example, I often drive over a mountain and have to force the computer to use up enough of the battery on the climb so I do not go over 100% on the battery when I descend. Since the GPS knows where you are going and information such as elevation change is available it would be neat if the software could optomize the battery usage with that information. This could also be useful as the Prius could adapt to your regular routes. I am no engineer so I can't fathom how much efficiency this would result in, but it is fun to dream
