Repartitioning operations is a large part of the value of federations. The ability to repartition databases enable elasticity in the database tier. With federations online repartitioning operations, database tiers can be made even stretch-ier. Scheduling...

When working with federations, database schema requires a special consideration. With federations, you take parts of your schema and scale it out. With each federation in the root database, a subset of objects are scaled-out. You may create multiple federations...

Here is a fresh summary of federations. Overview, sample application scenarios and concepts. http://social.technet.microsoft.com/wiki/contents/articles/sql-azure-federations-how-to-build-large-scale-database-solutions-with-sql-azure.aspx Enjoy.