Of all the odd breathalyzer," according to NaviGadget.devices on the today, this one actually seems to make some sense. Portugal-based NDrive has developed what it calls "the world's first GPS navigation system with a
There are otherthat have been developed, of course, including some that if the driver is past the legal limit. But the built-in GPS system might provide additional incentive for motorists to buy one of these portable devices, which appear to be destined for the European market for 200 euros, or about $297. As for the practicality, it obviously doesn't hurt to have a little help with directions, especially if you've had a few beers and have to hoof it.