A web-based purely-functional text editor. Named after Chris Okasaki, author of the seminal text Purely Functional Data Structures.
Only works in Chrome right now because all the browsers seem to have a different way of dealing with editable elements. Working on a fix. Don't type too fast.
Hundred bux per browser tab. Email me for discounts based on the strength of your resolve.
Cyrus Omar http://www.cs.cmu.edu/~comar