Very excited about the Bespin project.

Its a new project from the mozilla lab to create a full web based editor in Javascript.
Our early test as been pretty negative right now. The video demo look cool but when we tried it, it hang our computers.
Still their uses of HTML 5 canvas is very interesting and the project goals are promising.

Radria is currently using EditArea that we love. Its an amazing piece of code that easy to use, implement and customize.
But its is limited when the files get to big and become pretty slow.