In the past, we may have considered a projector-equipped camcorder if the price was right, but with dim output (typically less than 20 lumens) and content options limited to footage you've shot, the available functionality often didn't justify a premium of several hundred dollars. Sony, for its part, is working to make that secondary display massively more appealing -- the company's latest generation of high-end camcorders adds an HDMI input, with an option to display content from any comp