The Micro Windmill mobile charger has been developed by NV Satyanarayana, a science graduate based in India. His device is basically a small fan with blades of 10cm diameter connected to a generator with an output wire which connects to a mobile phone. The components are weather proof so you can use it in any weather conditions and being lightweight it can be carried about easily. It can also even charge batteries of of laptops. handhelds and MP3 players. Though this might take a little time!
The Micro Windmill mobile charger is currently still in the development stage - no release date has been set as yet.
Via New Launches