Off-Topic: use laptop only as USB power supply

[gabriel at dreamingcrow.com (Gabriel Cain)]

Get a minty boost from LadyAda and use batteries. Much lighter than 
carrying a laptop as a big battery around. :)

http://www.ladyada.net/make/mintyboost/

-Gabriel

Matthias Flittner wrote:
>  Hi there,
> I'm not sure if anyone out there has an answer to this insane question:
> But is it possible to use my laptop only has power supply via usb for my
> mobile phone. Yes you heard right: I don't want to boot an operating
> system I only want to charge my battery of my mobile phone. No fan should
> be powered on. I only need voltage on the USB ports.
> 
> Any suggestions? ;)