Good choice. I wanted the Apps however I couldn't justify the cost of the Navigation for it.
I went for the extended bluetooth so using the white iphone cable does give me some access through the idrive.
I wish I had researched before getting my car, there's a few things I wish I had and hadn't done now!
Current: f30 320d M Sport, EBII with some other bits.
Previous: e90 320d M Sport, 193 Wheels, Sun Protection Glass, Sapphire Black