Lite Panels were demonstrating their excellent LED light technology at the show, I saw a micro panel (as pictured) mounted on a digital SLR. While it provides good clean light, it does not have the throw of flash, but those of you used to tungsten video lights to assist in your lighting will love this gear.
5600k lights, 230lux at 2 feet, dimmable, long lasting LEDs, no heat generated, ok battery life (1.5 hours continuous on 4 AAs), can filter/diffuse. There are also larger banks available. Watch this technology! Cheers, Paul.