Sync Data Between SQL Server and SQL Azure

couple of weeks ago I had discussion with a friend of mine about cloud technologies form Microsoft. After we finished that discussion I start thinking of what scenarios that we maybe come over while developing a real enterprise application on cloud. One scenario came into mind about that; What if I get into a need to synchronize data between SQL Azure on the cloud and SQL server on-premises? is this will be an easy thing to be accomplished? Sudhesh through the below video illustrate how to setup data sync between a SQL Azure and SQL Server databases.