You've heard of the Palm Pilot? Well, here's the Palm Pistol. Constitution Arms, a small arms manufacturer based in Maplewood, N.J., is taking deposits for what it touts as the world's first ergonomically designed firearm. Intended for use by the elderly and disabled, the single-shot 9-mm weapon looks like a giant bean grasped in the palm of the hand. The barrel points out between the user's fingers. You "pull" the trigger by pressing on a thumbed button at the top.