Go to http://beyondrelational.com/whatisnew/sqlserver/azure/default.aspx to explore the features being added with each release of SQL Azure. You will be interested to know that unlike other products, the release cycles of SQL Azure is rapid and in a year you can expect 4-6 service updates (releases). On http://beyondrelational.com/whatisnew/sqlserver/azure/default.aspx , you will find the information about past releases organized in a list format and also information about latest releases of SQL Azure.
I would like to thank Jacob sir for his encouragement and support! Thanks sir!