From what I have read, they are planning on stamping the disks when you bring them in so they can only be brought in once. With what or how hard it will be to remove I don't know.
Slashdot videos: Now with more Slashdot!
We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).
Link to Original Source
I do not believe that Google will ever replace MS Word... for a lot of the work that is currently being done using MS Word or Excel (or even OpenOffie Writer or Calc) Google Docs and Spreadsheets is not merely a free replacement, but an actual improvement.