Deos anyone know why a projector couldn't use a cluster of high-intensity LED's instead of the bulbs they currently use? In theory they could offer some fantastic benefits. They run completely cool, so the PJ could be fan-less and therefore silent and effectively immune to dust problems. Also, the bulb-life of the PJ would probably become a non-issue. I'm guessing that even the amazingly bright LED's that they do these days are still too dim when compared with a PJ bulb - or maybe it's a colour purity issue?