One thing I forgot to mention as a benefit is that it will also increase interaction between the people participating in the RPG by a lot. From getting the basics down with gDocs to discussing and writing events in the RPG at the same time onto the document, it will encourage interaction so much that if one person that wishes to, say, interact with you in the RPG then you can contact him/her over IM and start discussing and writing the event right then and there.

Your opinions are highly valued and the statements you made are quite valid. I still don't know how in the end this will turn out. At the very least everyone will learn how to use gDocuments if anything else, which in itself is a very useful thing to know. :p