Meet the SparkFun Rogue Router: a solar-powered file server that sets itself up as an access point, serving your files when you want. You can stick it anywhere magnet would stick. The Rogue Router was made using a 12v solar panel, a Sunny Buddy solar charger, a ESP8266 Thing Dev Board, and a 2000 mAh battery. The below video covers what this product has to offer:
What do you think? How would you improve upon this idea?