I love the LightTable "waY". But unfortunately as an Eclipse user, it will probably take me a long time before I want to adopt it. Even though Eclipse is a bulky heap, You can make it so easily adept to whatever you want to program.
Sub <0.5 LT versions have been disappointing / too buggy for me to seriously consider. I'm really looking for a LightTable way of a truly modular editor.. (That means without having to switch workspaces).