Very good point, David. I've spent a lot of time recently, going through the sessions (and scenarios) on the DLS and laboriously going through and trying to identify the associated layouts. To be fair. most of the session designers do follow a naming convention but often you'll come across a "Basic Session" or other such nondescript titles. By the way, there's a lot of great sessions and even a few scenarios that are several years old and still work very well on TRS2010. Granted, you usually have to run in compatibility mode but in many cases, it's well worth it.
Getting back to the naming convention, it would have to be policed when routes and sessions are added to the DLS but I wouldn't think that would be much of a hardship. It's easy enough to change a session name or better still if all designers named their sessions with the layout name somewhere in the title.
Regards, Paul