[griffordson]

Add replication across regions into the mix and things swing even further in favor of AWS. Dealing with cross datacenter replication of MySQL was eating our lunch and preventing us from getting anything else done before we moved to an early version of RDS.

[nimrody]

Can you share some information on what were the problems with cross region replications? Does AWS use a replication protocol / transport other than the MySQL's built-in replication?