It's not a missing feature. Microsoft office has almost-full-featured in-browser document editing (http://www.officelive.com/en-us/ http://www.officelive.com/e

It's not a missing feature. Microsoft office has almost-full-featured in-browser document editing (http://www.officelive.com/en-us/ http://www.officelive.com/en-us/). It actually has a really slick UI (like the desktop office), and more importantly to me, works perfectly on Linux. Edit: as another commenter mentioned, it also has co-authoring; not as slick at google docs at chatting, but it worked well for me.