I assume the projector can't light up a screen as well as the big ones, but a small shift in thinking makes me wonder if this has some use: if you do business travel, would this make a good large-screen laptop? With the bonus of being able to project for small groups? Would you need to bring some kind of screen to project on for daily use? or would a cube wall work?
the only disadvantage I see for this use is no battery, but I usually plug in anyway if it's available (and it usually is). Still need a keyboard but with the size, not much added to the travel bad for a small one, and more ergonomic (lot of people do carry keyboards nowadays anyway with a laptop because of ergo concerns).