With the new cmd-delete key, as well as the (maybe old) cmd-ctrl-up and cmd-ctrl-down, I can go through my Unfiled folder quite fast, read things keeping the focus in the preview pane, and delete them when read. Using the new “Set Batch Change”, I can easily set the tags, title, and many things, using only the keyboard.
The one thing I’m missing (and I know I’m asking much ) is to be able to file a record using only the keyboard. Hitting some combination would bring a view of the record hierarchy, and one could choose where to move the file there. If one could configure some “favorite” places (I have maybe 5 or 6 or those), this would be even better.