The Hololens is an amazing device capable of many things. Oddly enough, it is not equipped with a GPS Sensor. This article demonstrates a technique for pairing your GPS capable smart phone to the Hololens using Bluetooth LE signals.
Developing Virtual Reality games is very new. I cover many of the core considerations a new VR developer or designer would need to think about when building a room scale VR experience. I also share many of the tips and tricks I've learned.