It looks pretty nifty! It's kind of like what Subtext and Bicicleta wanted to do, but never did (or haven't done yet). You get live update of the code and, apparently, live inspection of all the values in the code. The missing piece would be inspecting values inside a function call.
But it sounds like it's proprietary software? Why do you need that if you're getting funded through Kickstarter?
Either way, it looks like a really inspiring project, and I hope we see many more like it.
Oh, I've been pretty distracted with other (probably less important) things these, uh, years. embarrassed face
My first prototype implementation, a tree-walking interpreter in OCaml I threw together in a few days, was discouragingly slow, so a lot of work may be needed to get it to run acceptably fast; and I haven't done the GUI work to realize the potential Light-Table-land advantages yet.
The licensing situation is really unclear. The Kickstarter page says, "In order to download packaged distributions, you'll need a license". But I expect that, if it's open source, I can get a packaged distribution by saying (I'm using Arch Linux):
Maybe he's figured out by now that most people now know better than to tie their programming career to a proprietary editor. The Kickstarter was about a year ago. (Still, how is he going to deliver on his "50 licenses" rewards if he makes it open source? At this point, he's put himself in a position where he has to break his promise to somebody.)
But it sounds like it's proprietary software? Why do you need that if you're getting funded through Kickstarter?
Either way, it looks like a really inspiring project, and I hope we see many more like it.