email--what's left?

First, I'd like to do some stress testing. Because of the Ark's slow update, reading email represents a considerable load. I'd also like to see some user experience with email before declaring it beta.

After that, its subject-based routing. I've talked with several users and potential users, and this is a key feature. Now I'm not talking about filtering, but something more direct--like the pathname of the Topic where the EmailLSec is to be created. (In the case of subject routing, a copy would NOT be added to the calendar.) But there are some details to be worked out:

1. Lets start the subject line with a keyword, like "route", followed by the destination pathname.
2. If there is an error, the email is posted to the calendar with an error header.
3. The destination Topic must already exist, at least to start. Automatic Topic creation is a nice feature, but I'd like to place some contraints on it--like not automaticly creating a Cabinet!