Seriously, what would the world be like without crazy Japanese peripherals like the iPhone Dock Fan? Probably a lot hotter, that's for sure.
The dock fan, which comes in its own iPhone-esque case, plugs into the 30-pin dock connector on your iPhone and is activated by a switch on the device. It rotates 90 degrees, so you can fan either perpendicular or in line with your Apple handset.
My Japanese is nowhere near good enough to try and work out how much the peripheral costs, but the next time you find yourself in Akihabara, grab one for me, will you?