Estimote in Unity augmented reality project

Hey everyone-
We’re developing an augmented reality app using the Unity 3D rendering engine. Would like to know A) has anyone implemented successful Estimote calls into a Unity project? Did you use a plugin or some other handler (or is there an Estimote plugin)? and B) We’re assuming we can overwrite the GPS-provided location data with triangulated beacon data for close-proximity augmentation of outdoor spaces. Is our assumption correct about being able to uniquely identify beacon signals based on signal strength (i.e. 4 beacons placed at the cardinal points around a space), and thereby derive a (fictional, defined by us) geolocation?