Announced at
http://googlewebmastercentral.blogspot.com/2010/12/new-hacked-site-notifications-in-search.html

http://3.bp.blogspot.com/_o5Na_9269nA/TQull1g2l1I/AAAAAAAAEvY/2GP_ovj22pU/s400/hacked-site-full.png

Philipp: Those spam messages stay here more than 4 hours today :-(

Maybe it would help for Philipp to give spam deletion rights to a few more users.

I knew there was something wrong with Matt Cutts' site! See here:
http://www.mattcutts.com/blog/?shop=buy-viagra-online
;-)

Tadeusz, thanks for the link. ;)

I like this new feature, because it surfaces info to site owners that they might know discover quickly on their own.