Does quite alright...

Lets face it; this isnt a factory installed unit, so be realistic about what it does and how well it works.
I have a 7 inch GPS screen unit, the Bluetooth wireless backup camera, and this app.
App on the phone seems to connect and stay connected to the GPS unit and when the back up camera kicks in it doesnt interfere with that connectivity.
The add-on purchases also work well. No major complaints here...

dezurita about Garmin Smartphone Link