He will get used to it. Give him a couple of weeks and he will be thanking you big time. Practice practice!!!

Once he gets into it, you may want to turn him onto the global games out there for GPS. I forgot the name of it, maybe someone can chime in here that knows. It is the ultimate Easter Egg hunt for GPS. People actually travel the world to find the different checkpoints and sign in when they find it. If nobody chimes in and you are interested, I can ask my ex-brother-in-law who was telling me about it. He and his buddies (air traffic controllers) have done it before.