Your Press Could Power Your Cellphone or Laptop

We spend a lot of time charging our gadgets,but the solution comes at the Gadgets Design Competition 2008 who shows up a system invented by Alexander Parker, that could power your laptop, cellphone, or other device that has buttons as an input, to an extent that could replace your battery.
By removing wall outlets from the electrical consumption of cell phones you're saving nearly 0.144kW a day, or 52.560kW a year. This is because if a cell phone charger is left plugged in, it still uses the same amount of energy per each hour of the day, until unplugged.
The system could also be implemented in other button-tap devices like laptops, keyboards, or other computing devices .
This invention will be very usefull and could potentially reduce the amount of non-green resources.