The acme editor was new to me so thanks for that. The comment about spreadsheets reminded me of an interview on the Thoughtbot Podcast with Chris Granger about a new IDE being developed called Eve. [podcast link](http://giantrobots.fm/111) If I understand correctly, the idea is that its like excel, but you use it to build domain editors, but it revolves heavily around constraint solvers? I don't know, but the podcast episode is awesome. Bottom line is that I'm giddy to use it [link to the announcement post](http://www.chris-granger.com/2014/10/01/beyond-light-table/)