All in all, the M109S is a tiny projector that delivers just enough light to be worthy of a place in your bag.

Optoma Pico Pocket Projector PK-101

Easily the smallest projector of our roundup, the soon-to-be-released sets the standard for mobility with a device that's smaller than many flashlights. Unfortunately, it's about as bright as one and is suitable for presentations only in a dark room.

So small and light it might be mistaken for a cell phone, the Pico weighs 4.1 ounces, which rises to 7.4 ounces with its AC adapter. It measures just 0.7 by 2.0 by 4.2 inches, and like the others doesn't have a lens cover. Like the MPro110, the Pico has a tiny threaded tripod mount underneath for properly aiming its image on the screen. It comes with a padded case, but like the M109S's pouch, the AC adapter doesn't fit inside.

Showing its dual business-consumer orientation, the Pico's only AV input connection is a mini-video jack that works with most digital media players; there's an included RCA-to-mini-jack cable for composite video and audio. In addition to the basic $400 projector, there will be a $430 package that includes a connector kit for and .