Recently we had a customer request to alter the server name on the login page with a custom value. A simple javascript change in the Installed master server would accomplish this.
The change is on
"/<SPS6.0Installation>/server/webapps/sps/js/login.js"
Change the line#314 as below, and customize it at a per-MS installation (say staging/ testing / production etc, instead of the actual server names)
314c314 < + displayNode.childNodes[0].nodeValue --- > + "SPS Regression Test Server"
