Is it possible that flashlights were not listed because they're not even considered questionable, let alone prohibited?
The list contains items that are: weapons, potential weapons, explosive/flammable, and electronic devices. Flashlights, at least small ones, are sort of ineffective as weapons and are thus benign. Their only purpose is for illumination and signalling. And any regulated lights are probably not strong enough to cause radio interference.
However, a 6D Mag or similar "club" sized light, or one that has OC spray, stun, etc. could be denied because it is a potential weapon. That's understandable. Problem is, where do they draw the line on size allowed? Canes and umbrellas are potential weapons, yet they're allowed.
I do wish they had put flashlights on the list as "allowed", since anything not on the list is open to interpretation and could be denied at the guard's whim. However, the list cannot include EVERY item.
Best thing to do is keep your carry-on flashlights to a minimum. 1 or 2 SMALL lights shouldn't cause a problem. Leave the larger lights at home or in checked baggage. Chances are your not even going to be using you light on board unless something bad happens. And maybe not even then. /ubbthreads/images/graemlins/frown.gif