Garmin today announced a Palm GPS Navigator featuring Garmin Mobile XT software. Drivers using the new GPS Navigator with their Palm smartphones can rely on turn-by-turn, voice-prompted directions. Expected late November, the Palm GPS Navigator featuring Garmin software will be $249 USD.
How can install Garmin?

Garmin Mobile XT is preloaded on a microSD card (with miniSD and standard SD card adapters) that includes Garmin navigation software for the United States, Canada and Puerto Rico. Customers can easily route to a specific street address or choose from more than 6 million points of interest - such as restaurants, hotels, ATMs, and gas stations. In addition to navigation, Garmin Mobile XT includes free access to Garmin Online so that customers have useful, updated information at their fingertips, such as traffic, fuel prices, hotel prices and weather forecasts.