While I agree with David's sentiment, the more info the better . . . it sometimes may be appropriate to have a stock answer when the event doesn't really generate real emotion.
http://status.37signals.com/
"21:20 - 21:40AM CDT DECEMBER 22 (3:20 - 3:40 GMT DECEMBER 23), 2008
Connection problems were experienced to Basecamp and Highrise due to a misbehaving web server. We apologize for the inconvenience."