[rogerbinns]

I've got both an Android phone (Galaxy Nexus) and a Garmin in my car. The Android has a smaller screen and more up to date maps. The Garmin shows the maps better (spatial awareness) and its instructions are better, plus more complete when roads do things like fork. Additionally I can actually read the Garmin in sunshine while wearing sunglasses - something that is considerably harder for the Android.

But another generation or two of displays and they'll no longer be an issue. I don't hold out much hope for the friendliness of Google's map display and instructions, but suspect most people won't care, and certainly won't care enough to fork our for a PND.

It is interesting to see how companies are responding. Garmin are now letting their devices cooperate with your phone with SmartLink: http://gpstracklog.com/2012/06/garmin-smartphone-link-review...

Also interesting is the Parrot Asteroid. The concept is great - a head unit running Android - but the implementation is truly awful. http://www.parrot.com/usa/products/bluetooth-hands-free-car-...