[Ken Case]

Easy creation of actions from messages in Mail is planned for 1.0.

What we're planning is an "Add the current selection to OmniFocus" context-sensitive trigger which notices you're running Mail and runs an appropriate script which will grab the selected messages from Mail and make actions out of them.

The plan is that you can then add or customize additional scripts (and we'll provide several built-ins), so if you're running another app (e.g. OmniWeb) it will run the appropriate script for that app (e.g. one which grabs the current web page from OmniWeb).