I just saw the 70" Sony SXRD (their proprietary version of LCOS) RPTV at CEDIA. The source material was 1080i from a blu-ray. Incredible detail, low video noise, very little obvious motion artifacts, beautiful color, pretty good black level. In short a fantastic picture, that bests anything but the most exotic machines. Aside from a Sony G90 CRT front projector, a Faroudja D-ILA projector ($42,000), the Sony Qualia front projector, this was my favorite display device at CEDIA. At $10,000, nothing approaches this set. The 82" Mitsubishi LCOS set was also displayed at CEDIA. It suffered by comparison, primarily from poorer black level.
The 61" DLP set that is only 7" in depth was being shown by In-Focus (RCA was showing their version, which is identical). I was surprised that it had reasonably good focus at the edges, given that the beam must be hitting the edges at an extremely oblique angle. My only concern was that, with the material they were using, I saw a bit more of the "rainbows" than I like to see. Can't say if this was an inherent quality of this technology.