unlimited backup revisions?

[Sean J. Schluntz]

Sorry is this is a repeat, but there is no search option (that I can find)
on the list server.

Is there a way to make rsync keep unlimited backup copies. When ever a file
is changed for it to (with out any of the file merge stuff going) just push 
the earler backups down a counting number and drop the new one in place. That
way we would have revision histories on all of the files stored on the
server.

-Sean