Google maps predict traffic patterns

By analysing the traffic history patern on routes googlemaps can now predicttraffic for any day of the week and time of the day.Click the Traffic buttonon the top of a map and then click the change link to switch between live trafficand traffic predictions. Creating an service on top of this data/service that gives youinformation such as best times to travel from one place to another or suggest alternate routethat won't be so clogged seems to be a possible idea.