Pg has a lot of people fired up about using lisps, but right now it's a sport you can only participate in if you've got a certain -other- set of skills like vi and emacs and a decent knowledge of system administration. Preconditions like this limit the user community massively. Small communities find it difficult to get momentum.

I've forced myself to stick with emacs/slime because basically that's that there is. I'm getting comfortable, and starting to like it. But I think it's actually a kind of Helsinki syndrome...

I'd like to write the next Viaweb, and I'd like to write it in Lisp. But if the basic language is inviting, the rest of the environment is sorta hostile; a shangri-la in a swamp.

So the quality of the installer, the libraries distributed with it, the documentation, and the bundled editor will ultimately affect it's success.