The Aiptek PJT21X PocketCinema T20 Notebook Projector is a pocket projector you can literally put into your pocket. It's less than an inch thick and two and half by three and half inches in its other dimensions. It weighs about four ounces. Yet it's a real VGA (640 x 480) projector with an LCOS (liquid crystal on silicon) imaging panel and LED light source that can throw an image from six to 42 inches measured diagonally.
Not only is the T20 light weight but get this: It doesn't require an AC power adapter or any batteries. So when we say it weighs about four ounces we mean that's all it will weigh you down. Its clever design lets it draw power via its USB connection to your netbook or laptop. And as soon as you plug your T20 into the USB port it automatically installs the driver it needs. The driver allows you to project Microsoft PowerPoint presentations and to display Excel charts. You can use it with both Windows XP and Vista.
Sure, there are times when you really do have to lug a five to 15 pound full sized projector to a meeting or other presentation. But with its light weight, small dimensions and very affordable price, you're sure to feel more confident when you've brought along your trusty, tiny T20 as a backup.