Designed for people who don’t have a lot of space at their helms, Garmin just introduced at the Fort Lauderdale show a series of smaller, less expensive touchscreen and keyed chartplotters and combo units. The new models are additions to Garmin’s popular GPSMAP series and are  7- to 12-inch plotters available with or without built-in sonar. The new units are GPSMAP 7×2 and 9×2 touchscreen chartplotters and GPSMAP 10×2 and 12×2 keyed chartplotters. Dan Bartel, Garmin’s VP of worldwide sales, says the new units “are designed for the budget-conscious customer who desires premium features typically found only in a higher-end…