It won’t be the first to the party, or even the second or third, but the trusted Garmin brand will soon have a unit that support that will include aerial maps and topographic data pre-loaded. You can also enhance its built-in stuff with SD cards with sweet cartographic centers. It’s waterproof, it’s got temp and altitude monitors, and it’s navigated by what they call a “unique ‘Rock n’ Roller’ input device” – the name stinks of anachronism, but the little nubbin looks pretty solid for use in gales, sand storms, etc. Like others of the brand, it lets you sync routes, metadata, and so on between two of the devices – so you and a buddy can get lost together.
More on the Garmin Colorado series [GPS Tracklog]










Awesome. Simply awesome. Google Earth High-rez photos. A prospector’s dream. Plug it into a Beep-Mat Bm-8, and away you go! Bluetooth?
There are four different versions the 400t, 400i, 400c and 300 which all have the same specification apart from different pre-loaded maps. For example the 400t has TOPO maps while the 400c is for coastal use with the BlueChart g2 coastal charts.
Garmin’s new navigation scroll wheel / joystick (rock ‘n roller) is a big improvement for handheld navigation devices. There is a video on how to use it in the review at http://gpstekreviews.com/p=151
It’s worth looking at the geocaching application Wherigo Player also.