Today's applications are faced with several communication and connectivity obstacles in their daily life. Often secured connections are not allowed through firewalls and NAT devices at all. What to do if you need ubiquitous connectivity? Windows Azure AppFabric's Service Bus can be seen as the Swiss Army Knife of communication. Christian Weyer shows you how to build mighty cross-platform communication patterns like publish/subscribe – all in a secure manner, programmed with WCF or pure REST.