As of Accelerator version 6.1.4.0, you can now add a new attribute to the services element called EnvironmentID in your services.config.  This attribute is picked up by the WPF runtime engine and displayed on the logon, splash and browser status bar. This helps identify what services are being called.

In the WPF UX, the environment ID along with the "Version" key from the app.config shows on the logon, splash and browser window.