How many devices do you have that charge over USB? How many devices require you to do something special, or have a special adapter to do it?
The last few cell phones I¡¯ve had have USB micro or mini ports to charge from. I figure I can take a USB A Male to USB micro/mini Male cable and just plug it into a USB port and get power¡ except that doesn¡¯t work some times. Then there are the Apple devices. You¡¯ve got your iPods, iPhones and iPads. They do their own thing as well. What¡¯s a geek to do?