Once activated, the service begins an automatic backup process that can be scheduled at the interval of your choosing. Once the system has uploaded your info, it becomes available via an online interface. You are then free to add, delete, and import contacts from your phone or the web, with all changes being reflected on your device. The service is currently available for a host of handsets, including the majority of AT&T's non smartphone devices.
We heard the launch date for this service would be June, 8th but it looks like it's available now for $1.99 a month.
You can get all of the details
here.
Via
Boy Genius Report