One of the more interesting (if less publicized) additions to Google Maps 5.7 is the ability to download map data locally to your phone. That's a godsend if you're traveling somewhere that has a spotty connection, or if you're overseas and trying to avoid roaming charges.
To enable downloading map data, you'll need to go into the Labs section of Google Maps. Hit the menu button, then More, then Labs, and tap on the Download Map Area section, like you see above.
You'll be able to download a 10-mile radius from any point. Hold your finger down on the map or choose a saved location, then tap Download Map Area. It's simple.
Need more? We've got video after the break. Bon appetit.
Youtube link for mobile viewing