Projectors have gotten a whole lot smaller, a whole lot cheaper, and provide some pretty incredible performance.  We showed the BenQ GP1 on the air this morning.  Under $700, this little projector can run your presentation right off your iPhone and its versatility is enhanced by the USB connector that's built in.  You can get an image up to 80 inches and the picture is especially nice in a darkened room.  The wonderful thing about tiny new projectors, some of which have the footprint size of a dollar bill, is their long-life LED bulbs.  No longer do bulbs have a short life span and a replacement cost of hundreds of bucks.  The new generation of LED projectors have durable light sources that have a 20 thousand hour life span.