This site will go down on 31.may and all data will be permanently deleted. Consider storm.debian.net or hackmd.io instead.Welcome to the whiteboard. To figure out what this does, open the test page in several tabs at once, and try editing in one tab. Then check the other.
This service is run by Richard Darst, and is not an official Debian service. It should be considered alpha/beta right now, but stable enough and with a responsive person to help fix stuff.
I certainly didn't do all of this myself, I just trivially hooked it together. See http://code.google.com/p/google-mobwrite/ for the true source. Mobwrite is released under the Apache License, and I hereby release all of my code under the same.
For help/questions, see Richard (nick darst) in #debian-nyc on OFTC.