Actually it is back up now and both the KyptoKit dev team and the Chrome dev team responded promptly on reddit: http://www.reddit.com/r/Bitcoin/comments/262kye/chrome_team_here_heres_what_happened_with/
From that reddit post also a good point regarding the problems with extensions and people trying to break systems.
Although the google dev saying they are a Bitcoin enthusiast did pique my curiosity. (Hmm maybe that's why the price jumped love chasing rabbits lol)
•A malware developer hoping to steal bitcoin keys copied the kryptokit extension codebase in order to build their own malicious extension.
•The pipelines that we use to detect malware flagged the real kryptokit extension as being nearly identical since the vast majority of the effective code and assets were the same, causing the extension to be blacklisted.
•We noticed the conversation on /r/bitcoin (many of us are enthusiasts, too!) and realized what had taken place. The krypto-kit extension was restored and re-enabled on users machines.
•No data was removed from user machines at any point.
Wow! Really nice and prompt response from Google's people even reaching out in Reddit! Despite my healthy distrust of huge centralised corps, Google sure scored here from having a culture that allows this to happen. Imagine Apple, Yahoo or whatever employees fixing something this fast and reaching out in this way...
Google is the multi-billion dollar corporation that I believe will do the most good for the world, starting with google fiber and unfettered access to the internet. Instead of being petty and trying to scrape a few extra dollars out of consumers by moving to squander net neutrality, their interest lies in creating effortless and widespread internet availability because they have faith in their products and want them to be accessible by everyone.