This little gizmo is one of the more impressive of those I saw at DigitalLife last week. It's a wireless presenter (2.4-GHz RF), with Gyration's patented in-air cursor control (also used in the Nintendo Wii's controller, I'm told). It's small enough to carry on a keychain and has a detachable USB receiver, so you can connect it up with any laptop. And the receiver has has 1GB of Flash memory onboard, so you can carry your presentation or any software you may need to use on the road, right on the device. A button called Swipes lets you use hand motions to activate dynamic software activities including PowerPoint™, multimedia, and special effects tools.

It's small, but the price befits all the technology built in. It's available now for $199 direct.