In case you missed the news, Google Latitude is now available on the iPhone. Just visit google.com/latitude in your browser and you’ll be able to share your location information with your friends, see where they’re at on the map, and email/call/SMS them if they’re sharing that detail with you. There’s an Android version, a Blackberry version, and it also works in the browser on your computer.
One of the challenges to getting value out of this is having friends share info with you. Here’s a tip. If you add contacts, select “all contacts” and Latitude will start by showing you all of your correspondents who are already on Latitude (and presumably require less convincing that this is worth doing):
That brings up this screen:
The Latitude Badge site includes a one-click add to Blogger, or you can copy the embed code to add it to whatever platform you use. Easy!