AT&T, the official iPhone carrier in America, has released its new turn-by-turn GPS navigation application for the iPhone’s OS 3.0 update.

The software, which is also available on other phones such as the Android-equipped T-Mobile G1, was developed by Telenav GPS. AT&T has released the application for the iPhone at no cost, but it’s actually going to charge users $9.99 every month, to be reflected on their respective phone bills.

“With the new iPhone OS 3.0 software, we’re expanding the advantages of true turn-by-turn navigation—both voice and on-screen directions—to millions more customers,”said AT&T vice president of voice and data products Mark Collins. “We’re bringing greater convenience to drivers and travelers nationwide, including providing regular, automatic updates to map information at no charge so customers have the latest at their fingertips.”

Initial reviews praised the GPS navigation system for having a comprehensive feature set, including easy-to-use controls, voice recognition, and automatic re-routing. Just be wary of the service charges AT&T puts on the app for iPhone users.

Source: Motor Authority