Maybe it's a good time to update some of those figures. Eg, NFC range now goes up to 10cm-12cm or longer. Also, it would be nice to include power consumption from the ucontrollers that are used with those wireless transmitters to be more representative.
A lot of talk around Beacons and the promise of 'Low Energy', without that much factual data around the amount of power they source from your smartphone battery mostly.