http://blogs.msdn.com/b/brunoterkaly/archive/2011/11/11/source-code-to-azure-restful-service-android-mobile-client-ios-iphone-mobile-client-and-windows-phone-7-mobile-client.aspx&#160; Here is the source code &#160; Source Code: 8.5 mb download http://brunoblogfiles.com/SourceCode/UploadedSourceCode.zip &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; A free Azure account is available here. &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;en-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/brunoterkaly/archive/2011/11/11/source-code-to-azure-restful-service-android-mobile-client-ios-iphone-mobile-client-and-windows-phone-7-mobile-client.aspx#10267008Sun, 12 Feb 2012 19:10:45 GMT91d46819-8472-40ad-a661-2c78acb4018c:10267008Dada<p>Thanks for the informative article, but could you please do a follow-up on how to say solve the problem of a massively scalable (100 instances) statefull REST service that uses Entity Framework to possibly simultaneously write to an SQL Azure and also read data from it, but avoiding concurency errors please?</p> <p>Should you use caching and how please, since EF seems a given for eventual persistent storage to SQL DB?</p> <p>TIA</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10267008" width="1" height="1">