A WebmasterWorld thread has a report from a webmaster that he is missing a message in Google Webmaster Tools, which he normally sees. The message is:
Googlebot has succesfully accessed you homepage. Pages from your website are included in the google index.
Typically, sites would have this message in the dashboard when everything is in good order. But sometimes the message does not show.
Personally, I do not currently see the message myself, even for this site. So maybe something is up? Maybe Google removed it? Maybe there is a reporting bug of some sorts?
I doubt anyone should worry if they do not see this specific message, unless there are other issues being reported about a particular web site.
Forum discussion at WebmasterWorld.