"Developers don't have real access to the radios. That means that developers can't build systems like Tawkon can: that see radiation or energy levels used by the device, but it also doesn't let developers build real indoor navigation apps. You do realize that if you had access to the radios you could tell exactly where in a room you were standing, right? (Wifi is like light, it sprays across a room, and if you can triangulate its strength you'll know where in your house you are standing)."
Really, for network-proximity applications like our SpotEx it would be good.