[Mailman-Developers] Mailman Zope Integration Product

Hi all, I'm planing to write a Zope Product that integrates with Mailman. In the first iterations the main goal is to provide users management of their mailing list account. In coming iterations I planing to extend with an administration management interface and archive access (with possible ZCatalog integration).

Are there anyone else doing stuff with Zope? And what I need to consider? Especially how to handle multiple simultaneous management accesses? (When and how do I need to use locks?) Any ideas are welcome?

Regards, Johan Carlsson