This is what I think is the bigger news and deserves far bigger pressure than the downtime. Server downtime can always occur, but then you need to inform your paying customers (such as developers whose apps are counting on your services!) what the issue is. If you are paranoid and don't want to reveal information (for example if it is due to a hack of some kind), you AT LEAST should say something along the lines of "we know there are issues, we are on it."...
But it is absolutely unacceptable and inexcusable to have hours of downtime and have BOTH your end-user and developer status page still be completely green across the board.
Infuriating!