This'd be lil better for ppl getting their eyes strained :
darkoogle.com/classic
I think
darkoogle.com missed few things...
They are : Images, Maps, News, Shopping, Mail, Video, Groups, Books, Scholar, Blogs, Calendar, Photos, Documents, Reader, iGoogle, Sign in, Advanced Search, Preferences, Language Tools etc etc

Without them, darkoogle.com looks like a limping stallion.. I hope the Google Devs get it on quickly...
On the other hand.. The pages load pretty quick for the dark one
I hope this small step will help save/conserve a lot of energy & help us save our
Mother Earth ! 
for
Google !