I'd gladly pay some extra euro's for a multi-user edition, with client-server support over the Internet. I mean shared topic files (or db's) on the server, which can be simultaneously accessed and edited by multiple users anywhere on the planet.
I'd use it as an information / knowledge repository for my project teams.
This requires a strong security model, fine-grained locking and other complex features of course.
Also, when that's available someone will suggest a web interface on those server-based topics, or better still, an AJAX edition of MyInfo that runs in IE and FF