Yeah...I got a preliminary datasheet but can't post it online as I have signed something saying I can't. It isn't really that "great" shall we say. Cree XB-D is still better on almost all fronts except forward voltage (and even then I question Luxeon on that).
Also, the specs are done at 25C and 500mA not 350mA like every other LED. I know the whole "most people drive these at 500mA" story but when I go to compare it doesn't add up to what Cree is doing. Also not hot binning...wtf?
The only8 real advantage I saw was that with no dome it makes it easier to couple to fiber, and it's size allows more of them to be packed into a small area meaning smaller colour mixing optics, etc. I personally will wait for the colour XB-D then compare.