Garmin (one of the top players of aftermarket GPS maker) is officially in the smartphone arena with the "nuvifone". Imagine a typical Garmin nüvi GPS Navigator, add 3G HSDPA, phone, browser and what you have is a smartphone by Garmin.
Its kind of interesting watching the smartphone market unfold. The original attempt was trying to fit every function under one roof (jack of all trades, master of none). As more players become more engaged, smartphones began to take a persona to their own thus our mobile experience is shifting. You got your email intensive Blackberry devices, a multi-media driven iPhone and now a hardcore GPS functional nuvifone.