Sure but those are also highly variable. I built a test installation in a retail environment using about 15 beacons setting up four different types of zones. On

Sure but those are also highly variable. I built a test installation in a retail environment using about 15 beacons setting up four different types of zones. One of which was an attempt to do a 'tap your phone here interaction' (CLProximityImmediate trigger). The Beacon for that interaction was behind a piece of foamcore. Now I'm not a radio engineer, it may be that it was too many beacons for the area or the general wireless soup was high but it could sometimes take 20-30 seconds to see that beacon as immediate with your phone sitting smack dab on it. Sometimes 1sec. (iOS7.0 on both ipod touch 5thgen and iphone 5 devices) . Perhaps the filtering they use just needs to be tweaked a bit.