How MVC in twitter working?

[eluser]Colin Williams[/eluser]
They likely have a Status controller, and when you hit twitter.com/username, perhaps it's routed to /status/index/username. In fact, when you look at their RSS feeds, this is basically what you see: http://twitter.com/statuses/user_timeline/14133565.rss but instead of "index" they use "user_timeline"

Thinking of "creating controller dynamically at runtime" is a bizarrely complicated way to look at something as simple as routing. Dynamic routing, not dynamic controller creation.