Japanese amateur modifing Canon 40d

Modifing the Canon 40d to reduce chip temp to 25degrees below ambient.
See some of the results here:
www.seo-e.co.jp/hobby.htm

Looks interesting...

Cool.
Watch your fingers though. A little grill over the fan would be handy!
If it cools the chip I suppose it would cool the whole camera so
LCD visibility problems and battery problems might arise plus mittens might be needed to prevent frostbite.
Me nit-picker.
(Or should that be "nip-picker"!)