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.)
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):