Since nobody posted any reviews yet...
Clicky - here are some detailed pics of the light. Imo this light is awesome and one of the best choices atm.
Some technical details:
2 leds in series, current on leds in 3 modes - 0.58A-1.53A-2.36A
2 buttons to control the light, one turns it on and off, another changes modes. These is a mode memory, if you turn it off - it will turn on in the same mode as it was before turning off (unless you disconnect the battery, this resets memory).
Simple 2 stage voltage indicator, green switched to red at 6.41v on input.
LEDs are mounted on thick aluminium...erm, inserts? Don't know the correct english term for that. These inserts are 21x7mm with 2mm recess in the front for mounting leds on 16mm stars. Then they're inserted into case with very small gap on the sides (about 0.1-0.2mm or so). Fill this gap with thermal paste and you'll have perfect thermal transfer to the outer case, which is massive enough to handle 2 leds on full power.
Reflectors are orange-peel and made from aluminium, 21x14mm.
Driver looks very nice, good soldering everywhere. Thick silicone wires to leds too, overall quality of light is very, very good.
And then you have the battery pack...which is awesome! Its made from aluminium extrusion profile with 2 screwed-on covers (with rubber seals) on both sides. This makes it waterproof and the best thing about it - you can easily insert any non-protected 18650 cells into it.
Just unscrew one cover, insert 4 panasonic 3400 cells and you have a 6800mAh battery, no need to solder anything.
These are 4 cells included, made by ASO (some chinese company). They have about about 2100mAh capacity per cell, overall battery capacity (measured on Imax B6 at 0.7A discharge current) - 4246mAh.
The only downside is that it comes without any pouches, just one velcro strap - but it fits into standart chinese pouches for these batteries.
Overall this light (unlike D-99) is very well constructed and I was very impressed with it. Haven't tried it on road yet, so I can't give any comments about beam profile or brightness - but in the room testing it gives very wide beam with enough brightness to light up a whole wall.