SimpleDB is hard to get from a traditional SQL point of view, but it's a joy to use in practice. My simple-minded solution was to add an invisible local cache f

SimpleDB is hard to get from a traditional SQL point of view, but it's a joy to use in practice. My simple-minded solution was to add an invisible local cache for all of my writes and except the fact from all other players that I'm possibly reading an outdated data. Eventual consistency is pretty close to real life situations, just try to image the overplayed "bank account example" in a real life bank around 1900 with all manual account handling.