Aloha from Bengaluru,
Microsoft has come up with an easier solution to scale out.
SQL Azure Federations is the answer.
With T-SQL you can:
* Use T-SQL to create federated tables and migrating data from on-premises to SQL Azure
* Manage SQL Azure Federations by splitting the root member table using T-SQL
Details are here:
Authored by Roger Jennings - a.NET developer and writer