Not sure if the prototype was merely announced or shown. The current state of lasers (probably Novalux) is still a bit low brightness-wise, which might account for the 55" size. Any observations of screen gain / viewing angle, as well as laser glitter would be welcome.

"Waynick previewed a prototype 55-inch SXRD™ Grand WEGA™ rear projection micro-display television with a new laser light engine technology that enhances color uniformity and brightness, while maintaining a slim profile."

http://news.sel.sony.com/en/press_room/consumer/television/release/27367.html

You and my old boss have the same name...scary.