19. Photo Viewer

I'm less sold on the feature of an integrated photo viewer than the MP3 player, which is actually quite useful. I suppose if you're traveling and don't have a digital camera or a laptop, and want to show relatives photos of the family or recent escapades, then perhaps this could be a nice feature.

The Picture Viewer is accessed via the Travel Kit menu.

Figure 81: Telling the nuvi Where to Look for Photos

If the nuvi detects the presence of an SD memory card, tapping on the Picture Viewer from the Travel Kit menu will prompt the nuvi to ask you where you want it to look for photos.

Figure 82: Photo Thumbnails View

After telling the nuvi where to look for your photos, it creates a thumbnail contact sheet view that you can browse and tap on the photo you want to see. Alternatively, you can tap on Slide Show and have the nuvi cycle through all the photos, one at a time.

Figure 83: Viewing a Photo on the nuvi 680

Screen resolution and brightness on the nuvi 680 is excellent; the screen is better than on the StreetPilot c550, and photos look good on it. The nuvi Picture Viewer supports JPG files.

When looking at a photo, you can zoom in and out and pan by dragging the picture with your finger.

20. World Clock

Figure 84: World Clock

For the James Bond in all of us: those of you who find yourself in Morocco on Monday, London Tuesday, and Monte Carlo Wednesday -- the nuvi World Clock is for you!

Figure 85: World Map

Tapping on "World Map" from the World Clock page brings up a world map that shows day/night zone information, as well as the current date/time in your own time zone.

21. Currency Converter

Figure 86: Converting Currency

The Currency Converter is accessed via the Travel Kit menu, and allows you to convert from virtually any currency to any currency.

I could see this being a handy feature when traveling abroad.

Figure 87: Choosing the Currencies for Conversion

Tapping on the currency buttons allows you to set the source and target currency for conversion. The list of currencies is extensive -- looks like pretty much every currency in use is included.

Figure 88: Updating the Conversion Rate

The nuvi 680 ships with currency conversion rates pre-programmed, but if you're actually using the converter you'll want to update the conversion rate. Doing so is easy: tap on the Update button shown in figure 64.

22. Converting Units of Measurement

Figure 89: Unit Conversion

The nuvi 680 also includes a metrics conversion tool. Called the Measurement Converter, this tool is also accessed via the Travel Kit (Main Menu -> Travel Kit -> Measurement Converter).