I've been using Celtx for my hobby creative writing efforts recently:

https://www.celtx.com/

It has templates for comics, as well as screenplays, etc... and it has a story boarding feature. There's a free desktop version... the iphone app is pretty good. I use it to do some writing on my commute to work...

...and that Light Table IDE concept is cool Robynsveil - thanks for sharing.

I principally use Visual Studio, XCode and Komodo currently on the programming front...

;-)