Is there a piece of marine electronics that does so much yet has such a non-descript name? The multifunction display, usually dryly shortened to simply "MFD," is a powerhouse that can combine electronic charts, AIS, radar, GPS, voyage planning, tide data, performance instrument display, depth sounder display, engine gauge displays and a lot more. The MFD is more of a "Houston mission control" on your boat than some anonymous three-letter acronym, which is usually better suited to black box units that reside unseen behind a bulkhead. An example of the kind of power features available to MFDs was recently announced…