Toshiba Micro-Projector really is incredibly micro
I have very weak arm muscles. About the contained power of a small kitten in each, I'd say. So the thought of lugging a projector around wherever I needed to make a presentation fills me with a kind of hydrogenated, syrupy dread. Luckily I have people like Toshiba looking out for me – their TDP-FF1AU is a one-pound miracle that fits into the palm of your hand.
It's not anaemic, either; SVGA resolution supporting up to 800 x 600 and a 1500:1 contrast ratio, giving an image from 11" to 68" diagonally across. It runs cool, too, thanks to Toshiba chucking out the old-fashioned lamp and instead using a super-bright LED good for 10,000 hours before replacement. Low heat means no fan, which adds up to far longer battery life; in fact, the external Li-Ion pack can keep going for up to two hours.
Coming complete with a remote control, cables (VGA and USB), a carrying bag and a collapsible 23" screen for on-the-train mini demonstrations. The TDP-FF1AU even has a built-in speaker; sure, it only manages 0.5 watts, but it's better than nothing! $699 and available now.
The only thing on my wish-list would be some sort of wireless support: Bluetooth or WiFi. Perhaps in the second version?