For what it's worth, the new Azure Notification Hubs[1] present a fairly uniform API across devices. [1] http://www.windowsazure.com/en-us/documentation/servic

For what it's worth, the new Azure Notification Hubs[1] present a fairly uniform API across devices. [1] http://www.windowsazure.com/en-us/documentation/services/notification-hubs/ http://www.windowsazure.com/en-us/documentation/services/not...