Garmin Announces GPSMAP 378 and 478 for Land and Sea Navigation
Now your GPS can be amphibious, with the Garmin GPSMAP 378 and GPSMAP 478, which the company says are the first portable GPS devices loaded with land and sea data. If you spring for the optional antenna ($249.99), each can also be loaded with XM Satellite services, for music and graphic weather capabilities, which would…