Yesterday I met a friend in geneva. The one that uses Google Latitude. I used my mobile phone to see where he was and just using cell towers I got a pretty good fix on where he was, within just a few hundred meters.
When I called him to get a more accurate fix, i.e. for him to input the address as his latitude position using the power of Google maps, latitude and 3g it took just a minute to find the actual address.
For this reason I love google latitude. When you’ve got technologically savvy users it makes being geo-loced twenty four hours a day extremely useful.