Well, if we're just talking about using the google sheet for the MATH section, I'm cool about that. I agree with Ryryguy that we could still use a basic wiki to hold setting info and character sheet links. We will still need character background (to make sure he/she fits into the setting), so having a Wiki page for our character where we can put this background stuff as well as any other things we wanted for our character (say a picture or two) would be nice. Then when it came to the math, we could just put a link to our google-docs spreadsheet!