You know when people are always saying "is your power supply in your PC enough" when you have a problem with your PC..... well now we have a device that will tell you if its not getting enough power from your PC. When you plug it in and it tells you "not enough power to charge" your PC power supply is under stress and probably causing problems with your hardware...

Little tip for a chosen few.

its true! but if you unplug/replug sometimes the message dissapear

in the other hand: how the heck it knows?

maybe somewhere inside /proc we can read the current power input so we can make a desktop widget