Bangle.js 2: Bluetooth Long Range

Ok, there's now an app:

https://espruino.github.io/BangleApps/?id=shownearby

• Get 2 (or more!) Bangles
  
• Ensure you have the latest cutting edge firmware on your bangle
  
• Install openstreetmap
  
• Install Assisted AGPS (optional!)
  
• Install Show Nearby
  
• Run the Show Nearby app on both Bangles, wait until they both have GPS - then go for a walk.
  
  

Your location is shown as a red dot, and the location of other Bangles running the app is shown in green. I'd be interested to see how far away from each other you can get!