For some time now i've been wondering why they can't mount lights both on the head tube and down by the axle on the fork for both "where you are pointed" and "where you are about to go if you turn your wheel this direction". Better illumination of potential hazards, you are more visible, and the "triangle" pattern may illuminate more evenly depending on the lamps used.
This is good for people without other mount options on the fork, i think.
- Andy