Check out the post on the R Street Layout blog about a drop-in module system the Sacramento Modular Railroaders are developing. Similar in idea to the Operational Design Element (ODE) proposed as part of the Dynamo system. I love the fact that there is a second level of modularity being created. A module within a module. Reminds me of the Jerry Seinfeld joke about their being so many Starbuck's in the world that one day he saw a Starbuck's inside of another Starbuck's.
I can easily imagine this working in the Dynamo system. Simply have these inserts for industries, stations, railroad infrastructure, whatever. Miniature wargaming meets model railroading. And here's someone actually doing it!
