My surprise is that a respected team and high profile company would make such a basic mistake of relying on a single datacenter, within a single availability zo

My surprise is that a respected team and high profile company would make such a basic mistake of relying on a single datacenter, within a single availability zone -- in lower Manhattan. And knowing since last week that Sandy was coming, and this was a real threat. And I'm not even talking about Trello (which is still just a hobby for Joel & team), but this also brought down Fog Creek and all their commercial services and paying customers. The positive side of Sandy (if there's any) is that people will really take more seriously the idea of "expect the best; plan for the worst". And Amazon will likely see a spike of new customers in the next following days.