Roomba positioning challenges

The Roomba iRobot looks like an incredibly fun product, though it’s reviews as a vacuum cleaner have been mediocre. I love, though, that the same technology has military uses: “The Army has deployed PackBot, a reconnaissance robot from iRobot, to scope out caves and other dangerous locales in Afghanistan and Iraq.”

Clearly, someone has not read enough science fiction/horror, or they would worry about mixups between the vacuum cleaner firmware and the blow up the Taliban firmware.