The photonic disruptor is currently deployed in Iraq. Meanwhile, President Bush has stated that we are hot on the heels of the Xindi weapons of planetary destruction.
(And I must say, I rather like that in addition to the money they've spent to make the thing, they also threw in some cash to make it look cooler. Same with their StunStrike lightning gun.)
Meanwhile, the military is also working on directed energy weapons that excite water molecules at the very surface of the skin, producing a sensation of extreme heat. More on these weapons, somewhat inevitably referred to as "Star Trek phaser technology", can be found here.
(As for me, I still wanna know what happened to that guy with the tetanizer beam that everyone was calling a phaser a few years ago. I still think the idea of ionizing the air with lasers so you can thereby create an electrical circuit is hellaciously cool.)