Interested to hear about your total rewrite, will it essentially be a completely new module in no way resembling it's previous version or will it be easy to upgrade from the current version to the new version?
I did make the change password feature with a check to see if the current user is using a password.. so it would only be usable by those who used the a3m registration mechanism.
Any idea when we may have a look at the new version? I will probably hold off updating my website until this version arrives.
And for the record, a regular INT will do, unless you think your website will be getting more than 2.147.483.647 users :p