Delay Activity in Microsoft Workflow

There are several ways to create "timeouts" in your business logic using sequential or state machine workflows. For sequential workflow it will be combination of While and Listen activity (with HandleExternalEvent and Delay branches). For state workflow it will be Timeout event which makes transition to the same state.

Thanks to Matt Milner and his excellent article at: http://msdn.microsoft.com/en-us/magazine/ee294452.aspx