stevew writes "Following up our earlier discussion about whether guns should be self-aware comes the announcement of the world's first Linux-powered rifle. A startup attending CES was showing how their 'Precision Guided Firearms' would use customized, computerized scopes to assist with aiming. 'The Linux-powered scope produces a display that looks something like the heads-up display you'd see sitting in the cockpit of a fighter jet, showing the weapon's compass orientation, cant, and incline. To shoot at something, you first "mark" it using a button near the trigger. Marking a target illuminates it with the tracking scope's built-in laser, and the target gains a pip in the scope's display. When a target is marked, the tracking scope takes into account the range of the target, the ambient temperature and humidity, the age of the barrel, and a whole boatload of other parameters. It quickly reorients the display so the crosshairs in the center accurately show where the round will go.'"