However, what I see is people using dynamic languages because they are what frameworks are written in, not because they want to use a dynamic language. I hope that LightTable incorporates a packaging mechanism such that we can have a Ruby on Rails package, for example, and the 60% of RoR developers who never tweak anything can be more productive.

The problem is that you can give an excellent developer an unspecified tool and they will make it serve their purpose. We need the ability to pass those productivity improvements down the food chain, which is where Emacs fails utterly.