Here's a terrific example of advancing technology of value to sailors and boaters: inexpensive apps that will run on your smartphone or device when you're on your boat and show you the location, course, and speed of nearby ships (as long as you have connectivity). For coastal sailors, this is a cheap, easy way to access information that otherwise requires considerably more expensive equipment. Not sure what AIS is? Start here. Got to have it? Check out this review of three different apps for Apple and Android devices to learn which is the one for you.