[watchit]

Christopher, you may be new to all this but your first instincts were right... it's a great idea!
If you operate out of a Context Perspective grouped by Start Date with the group called Start Today expanded, and Availability filtered by Next Action or Available... when you click on an action to make it completed then it would be great if the next action of that project was automatically assigned to now as it's start date because it would pop into your Context Perspective as the next thing to do in that project without you having to leave that Perspective! I know a similar thing would happen if you just gave the Project a start date but there are times when this universal date assignment can cause problems, especially now that projects appear in some Context views.
James