http://blogs.msdn.com/b/robtiffany/archive/2009/10/02/the-hidden-message-queue-on-your-windows-phone.aspxThe ability to be “offline” and “occasionally-connected” is a critical component of successful mobile apps.  Wireless data networks lack complete coverage and exhibit a level of unreliability that immediately disqualify permanently-connected appsen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)