I don't believe this is true. I got out of a demo with Ken Bruns of CK less than 5 minutes ago, and he just told us they were developing a new LEDRGB MR lamp. He's still here for another hour or so, if there's anything you want me to ask him?
What I heard later from my manufacturers rep is that CK had problems with the heat sink, is redesigning the unit ( but don't expect anything for 24 months) and is no longer making the old units.