Garmin International, recently announced the GPSMAP 378 and GPSMAP 478 – “two amazingly versatile and portable GPS navigators that come pre-loaded with a comprehensive set of maps and charts.”

World’s first-ever portable GPS navigators w/pre-loaded land & sea cartography. Garmin GPSMAP 378 and 478 official release date will be in late May 2006!

GPSMAP 478 sports a Marine Detail Charts of the United States coastline, including Alaska and Hawaii – utilizing elements of Garmin’s new BlueChart ® g2™ technology.
GPSMAP 378 - is a combination color chartplotter and land navigator with preloaded maps for lakes throughout the continental U.S., in addition to detailed street-level mapping.

Source: Garmin International
Garmin GPS