mctrivia: Actually, it would not be impossible if it's only a master-slave architecture because it could work even with a data copy delay. However, to host two full featured BrainKings would require a full two-ways fast Europe-America replication and that, uh, that would be a real problem. For example, consider a situation when a user in Europe accepts a public invitation but another user in USA accepts the same invitation at the same time. So the European server sends a message "hey, mark this invitation as accepted!" and, in a few seconds, it receives a message "it is already accepted by another player!". Bang! A replication conflict.