TomTom has developed a reputation for simplified GPS; instead of a set of dedicated buttons, its car navigation units rely on a touchscreen interface that eliminates the guesswork. The TomTom ONE, which was announced for the North American market today, should only add to that reputation. Part of the appeal stems from the streamlined setup: TomTom's navigation software and map data is preloaded on an included SD card, so users can simply plug the card into the GPS unit to get started. The device is also much thinner than most navigation units and has a Bluetooth receiver that can use a GPRS data connection to get optional live updates for traffic and weather. Importantly, the ONE is also priced as an entry-level unit: at $500 it sells for considerably less than other TomTom models. An exact release date is pending; official news only describes the new model as "coming soon."