It burns me that Google is still not sophisticated enough to deal with purposely targeted mixed-case search terms. Case folding seems to be fundamental to how they internally order their English-language data, yet they seem to encounter no grief with exotic alphabets.
Yahoo and Microsoft are apparently collaborating and will come out with a new search in the next month or two. Google’s days on top might be numbered. Combine that with a prosecuter going after them on underage or kiddie porn. Their stock could be in the tank in a month.