This storm had days, if not a week, of head's up. While I agree "no one expected Manhattan to lose power" (another comment), as someone who heads up development of a SaaS product, I would have spent most of that week planning for worst cases and recovery. I constantly think about the worst case scenarios and how long they'll take to recover, even without huge storms bearing down on the data center.
So, I'm disappointed. I really love the Fogbugz and Trello products. Now I'm in a position where I have to question whether we should depend on them.