Two new features in Google Latitude: Location Alerts and History
by Volker Weber
Google Location Alerts (beta) lets you receive and send alert notifications if Google Latitude friends are nearby when you're somewhere interesting or unusual. Alerts use Location History to send notifications only when they're most likely to be interesting to you and your nearby friends.
Google Location History allows you to store your past Google Latitude locations and see them on a Google Map or in Google Earth. Once you enable Location History, you can view your location history and export or delete it at any time.
