Soldier Systems Daily is covering Modern Day Marine Expo in Quantico, VA and has some photos of Magpul's upcoming Scout light mount. It is supposed to be under $30 when it will be available.
There is also Raine Inc.'s Single Mag Pouch and Dump Pouch which has a dump pouch at the bottom. Pretty nifty idea.
Surefire has P3X lights. They use 3 CR123A batteries and give 1000 lumens for 1.5 hours.
From: Soldier Systems