Have you considered adding an import rules feature? It would be cool if I could automatically file/tag things based on information such as the filename, type, source application, content, etc.
Another example would be to set up a temporary tag. Say I’m doing some research on a particular subject. I could go into EF, create a new tag for the topic, and somehow specify that all new items be tagged with the new tag. Once I’m done, I can just turn it off. I realize I can get part way there by using ‘capture with options’, but that requires an additional confirmation. I really like just being able to hit F2 and keep going.