In the works is a version of LibreOffice that will run on a web server giving access by web browser. Here’s a demo video. It’s a bit jerky but one can get used to that, I suppose. If it’s jerky on “localhost” it will be jerkier on a remote server. This may be quite useful for people with fast networking connections or in-house collaboration with server on the LAN.
Predicted release time is late 2012 so there is still work to do. This development stems from gtk+broadway which can serve gtk output to the web.