This is a great idea. I can't figure out how to switch address books though. How does that work?

I use Entourage, and wanted to at least give Mail.app a try, but not having multiple identity support was a real show stopper for me. This is somewhat alleviated, of course, by fast user switching. But a utility like this would be even easier.

I'm not sure I prefer Mail.app over Entourage yet though. I imported mailboxes from an Entourage identity and Mail.app crashed in the middle of the import. Also, most of my friend's emails got marked as "junk". And there are quite a lot of places in message lists where Japanese is not showing up correctly.

Of course none of those issues are MailSwitch's fault. :)

doug