Real time collaboration features getting better (Score 1)

I've been using Google docs now for the past 6 months as part of my class study-groups where we routinely edit documents together in real-time. I am amazed at how well the interface works. We can see each other's cursors in different colors, highlights and edits in real time. The excel app is the most wanting as the copy-paste from excel does not work that great and one has to enable formula view prior to pasting. There are reasonable workarounds for those interested in making the move and saving some $$. Along with Google drive one can see how this has the potential to becoming an attractive package for students.