$99 gets you a lifetime subscription to turn-by-turn navigation with text-to-speech, traffic, weather, fuel prices, and more. Blackberry devices that don't have an onboard GPS can purchase Garmin's external Bluetooth GPS adapter (GPS 10x). As an added benefit, maps and POIs are stored online and downloaded as needed, so you'll always be using the latest maps.

The service is tied to the device and can't be transferred between Blackberry devices (so you might want to pickup the Blackberry 9000 before buying the lifetime GPS plan). Garmin Mobile for Blackberry is available for purchase and download at garmin.com/mobilephones.