I find keeping a copy of each of the arc3 releases useful because then I can diff a new release against the previous release and easily see what's changed. So I imagine this would be a useful service to the community to make these older releases available so other people could do the same thing.
But this isn't work that Paul needs to do. It's easy to write a script that periodically downloads the arc3.tar, and if it has changed, increment a release number, and publish the new release somewhere where people can get to it.
