To use Google Latitude, you'll use Google Maps with your computer and/or one of the following:
- Android-powered devices, such as the T-Mobile G1
- iPhone and iPod touch devices
- most color BlackBerry devices
- most Windows Mobile 5.0+ devices
- most Symbian S60 devices (Nokia smartphones)
Watch this short video to learn more! I don't think I'd keep it on all the time but I will use it again if the circumstances arise like they did for us this last week.