USB Your Car

With so many gadgets out there, I wonder why a USB port or two isn't standard equipment on new cars.  Even if the port doesn't connect to the car's stereo, at least if it provided power, it would be be able to power and charge the device.  I know in my car, my cigarette lighter auxiliary power port gets rotated between my GPS, my radar detector, and my Zune.  Here's where a product that can add four ports at once can find a place:

It's not exactly revolutionary in its functionality, converting the 12V input from your car's cigarette jack into power that can be used by any USB device, but it is certainly breaking new ground by offering four ports. This way, you (almost) have enough ports for each passenger in the car, assuming that each of them has a cell phone, iPod, Zune, or similar device that's running out of juice. You can even run a USB fan on there if you want.

With Quad USB ports, it gets me wondering what I could pop into the fourth port.  We wouldn't want it to go to waste, would we?