One advance that has helped, though not cured, the problem is Bluetooth, a wireless connectivity standard that allows units to send data over the airways for very short distances, like in an airplane cockpit. So while Bluetooth, available on many portable aviation weather systems, can cut down on cords, it can't eliminate them. The problem is with power. Displays and receivers suck up a lot of juice, so expect to have at least two dedicated power cords in the cockpit, along with at least two receivers and the display. It can make for a cluttered environment. With certified, panel-mount systems, the convenience is huge, but the price tag can be too. While prices will probably come down over the next couple of years, certified systems don't come cheap. Once you include the receiver, antennas, cables and installation, most certified panel-mounted displays with weather capability cost more than $20,000, sometimes a lot more. That can be a sizable percentage of the overall value of the airplane for many of us.