Unfortunately, the PX1 does not have any unique performance advantages that would make up for its heft. And at a current street price of $5,700, it is a very poor value for the money.
Sony has made some dramatic moves lately. The VPL-VW10HT looks like a dynamite product for home theater. And the VPL-CS1 Superlite has set a new price/performance standard in mobile SVGA projectors. However, we are still waiting for a strong move from Sony in the mobile XGA category. Meanwhile, the PX1 is ready to be put out to pasture.