Mail-to-Weblog Is a killer app
This is a feature I have wanted since before there was Manila. As a matter of fact it was how I originally thought a CMS would work, but that was a long time ago. However, as I contemplate a future with Mail-to-Weblog, I am starting to see the possibilities.
If you combine Mail-to-Weblog, with a simple mail-to form (like the MailForm Macro Erin Clerico installed on Weblogger and KCSOS. Here's an example form.) you have created a new way to collect content in a controlled fashion. You can use a simple form with required fields and instruction, giving Manila site a first-class way to collect structured info for things like Classified ads, book reports, and service requests.
Another possibility is that you can have a mail-to form that sends messages to a person for review. That person could just approve by forwarding the message to the super secret email address.
The future is Bright... Thanks UserLand!