Aaron Wall suggests that .info domains generally got a kicking out of the Google index for a day recently:
http://www.seobook.com/google-tempor...o-domain-names
Got to admit, it would make a lot of sense to aggressively filter .info domains - after all, with them being offered for free by Registerfly a few years back, and now available for less than $1 from GoDaddy, there's no motivation for anyone to develop strong content on these sites.
Commonly I see them used for blog spam - after all, they are so cheap that it's easy to churn and burn .info sites without causing too much expense.
I've previously suggested filtering .info domains would be a good move by Google - and it looks like Google just may be moving in that direction.