[curt.clifton]

Originally Posted by RobTrew

(one route might be to allow the focus list to include the inbox, as well as folders and projects)

This seems like the sensible design. If I'm focused on a project I certainly don't want inbox items showing (whether is project or context mode). But the ability to include the inbox in a focused set would give maximum flexibility. It might be nice, for example, when the inbox is loaded with actions that need to be organized into an existing project.