CarStations is a new app for one of your gadgets (iPhone or Android) that tells you where to plug in your larger, wheeled gadget. It can help you out immensely in the US, or tell you that your are 347.2 miles away from the nearest charging station if you find yourself in Turkey, which has two. There are over 1,700 stations listed as of now and that number is growing every day.
There are even talks of integrating this into electric cars, which would be brilliant. Also, it would slightly reduce the range of said car.