Nowadays it seems like everyone has a GPS unit, but Navigon's new 5100 will have a leg up on the competition when it debuts later this month 'cause it'll offer real-time traffic updates at no extra charge (unlike most GPS units which require a subscription for the service). On top of that, the inch-thick 5100 will also have the brains to recommend neighboring restaurants, hotels, and bars rated by Zagat. It won't have built-in Bluetooth, which we hold as a strike considering its $500 price, but it will offer text-to-speech functionality and a "lane assistant" which tells you the best lane to drive in when you're on the highway. All this displayed on its 3.5-inch screen. The unit will be out later this month.