(In a nutshell, they (SF) ain't talkin'.
Depends on who you spoke with. I ordered mine from SureFire directly, and it took three calls to even get the rep to admit that they ARE taking pre-orders. The last person was able to bring it up on her screen, but it showed NO release date. The first two reps stated "Its not in the system, so we cannot take orders at this time." When further pressed to find out a release date, I was told "...keep checking our website, so you don't have to repeatedly call us." This was my FIRST call into them, and as previously noted, their product listing on their website still says "coming soon" for the 10X. That's funny, I've got mine in hand as I was speaking with the rep. That's when I called two additional times, just to get a rep who knew the deal.
I called Surefire and placed an order directly, midweek last week a few days after PK made the KL series announcement here in the forum. The woman whom I spoke to just said "you know they aren't shipping yet" and I said yes I knew but I had heard the end of next week (which is now) but she wouldn't comment. I have heard there is a huge rejection rate of the Luxeon's by Surefire.