[RandomBK]

We can thank Google and the various other companies mapping out wireless IDs for this being an uphill battle.

Generally speaking, if you want wireless communication, you'll need some way of uniquely identifying each participant in the wireless space. Data aggregators can then drive around on the streets and associate device IDs with physical addresses.

A bluetooth communications setup (or future alternative) will want to be able to know what device IDs are around it. (You want to connect to your wireless toothbrush - not your neighbors). A malicious developer can then use that access to the ID list, compare it against databases of known ID locations, and get a really good guesstimate of your location.