Picture-Perfect Navigation

A rundown of what's hot in the world of GPS navigation, including one device with a photographic memory. Launch Photo Gallery.

Remember that roadside barbecue joint in Texas where you had the ribs that changed your life? Can you remember the address? Did it even have one? It´s no problem for the Navman iCN750 [above]. Just pull the battery-equipped device from its windshield mount, snap a picture with the integrated 1.3-megapixel camera, and the unit will store the photo paired with the location´s GPS coordinates. The next time you´ve got a hankering for ribs, go to the NavPix menu, select the shot, and the 750 will guide you back. You can trade pics between 750s or offload them to a PC with a USB cable or an SD card. The gadget has room for about 5,000 pictures-enough for a cross-country barbecue safari. Don´t forget the Wet-Naps.

Garmin GPSMAP 378

Equally useful in your car or boat, the GPSMAP 378 has street-level maps of the U.S., as well as high-res nautical charts of 3,200 lakes and low-res versions of thousands more. $1,285; garmin.com

MapQuest Navigator

This downloadable application turns your cellphone into a real nav system using its built-in GPS. Get detailed directions, automatic rerouting, even a pedestrian mode for foot travel. $10/month; mapquest.com

TomTom GO 910

Bring John Cleese on your next road trip with the 910, which lets you download new navigation voices (freeâ€$13 each). Choose from celebrities or types, like a New York City cabbie. $800; tomtom.com

Navman iCN750

Dimensions: 3 x 5.3 x 1.2 in.
Battery Life: 5 hrs.
Camera: 1.3 megapixels
Memory: 4 GB-2 for maps, 2 for photos
Display: 4-in. touchscreen
Get It: $800; navman.com

Mio Digiwalker C310

The C310 syncs with your Outlook e-mail contacts folder and can automatically guide you to any of those addresses. Its built-in MP3 player will keep you humming along the way. $650; miogps.com