This is a great idea that would improve efficiency.
Noah Coad commented
I completely agree w fmstrat, being able to have a single key to mark an item as viewed, remove it, and move to the next item would be very helpful. Like Gmail's '[' or Google Reader's 'n'. thanks
I would love to see this work just like Google Reader. Especially hitting "n" to go to the next item in the current stream. It makes it so easy to hit a key over and over to skim a hundred items.