Apologies for the extended delay in getting out a new release of Edit with Emacs. Real life has been doing a good job keeping me busy that spare hacking time is in short supply. A number of people have submitted pull requests and I've also done a bit of clean-up on the code.
I've also implemented the iterative save method for edit-server.el. Unfortunately it doesn't quite work as intended if the edited region uses encoding (e.g. longlines). In theory the buffer you have saved should have it's contents replaced with the new data from the browser but it just doesn't seem to work. For now I've just ensured the kill-ring has the real data in it so it's not overly painful to restore formatting. Patches and/or explanations are of course welcome!
So grab it now from webstore. The changes are as follows: