Today we bring you an interesting article about the Road Tested: AT&T Navigator for iPhone.

Like my colleague Mel Martin, I’ve had a serious GPS jones for quite a while. When I was in much better shape, I rode the local trails on a mountain bike with a Garmin eTrex Summit. It didn’t have any maps, nor did I really need any for what I was doing. My next GPS receiver was a Garmin GPSmap 60cs that I used for geocaching. It had a nice color screen and some limited maps, but really didn’t do a very good job of helping me find my way around town.

The third GPS unit was another Garmin, and in this case it was my first real “navigator.” I still have it; it’s the Garmin nüvi 660, which is an awesome little unit that can help you find your way around the US or Europe (depending on the model you purchase), act as an MP3 player, or even work as a fairly serviceable hands-free unit for Bluetooth phones.

I’ve used mine with my iPhones since way back in 2007, and have enjoyed hearing the amplified voices of callers blasting out of the nüvi.

It’s best capability, of course, is as a navigator. In this post, I’m going to compare the AT&T Navigator app App Store and service with the nüvi, and give you my take on how this free app works. Mel already filled you in on some of the details in his earlier post; we agreed that I’d give you the road test perspective.