Sounds very impressive indeed. If I am not mistaken, this is being sold at Candlepower Forums here:
http://candlepowerforums.com/vb/showthread.php?t=160078
It's a 1000 lumen light for about $700 USD. Dark Mower seemed to be the only taker. Not sure if Dark Mower and the vendor Arc Mania are related or the same person.
If you search google with Osram Ostar flashlight, there are a number of hits and links to other commercial products.
No matter how you look at it, the newest LEDs (Ostar, Cree XR-E, Seoul SSC-P4, Lumileds Rebel) have resulted in lights with > 500 lumen output, > 2 hr runtime and prices < $1K USD.
Now what lights have moved from the analog performance curve to the semiconductor performance curve, we are headed for some really exciting times.
I personally like the flashlight form factor since it is self-contained, can be easily removed from the bike for lock-up and has secondary uses.
We just really need someone to machine up some really industrial CNC mounting brackets to replace all of the plastic, homegrown stuff.