The implications of iBeacon go beyond Apple stores. One day, commuters might get information on subway delays as they stand on the platform, while museum visitors might get details on the painting they are standing in front of. Other retailers will be also able to offer deals or track which aisles shoppers linger in the longest.
In-store location technology does raise privacy concerns, though many shoppers have shown a willingness to be tracked if there's something in it for them.
"With any new technology, you don't know how it's going to be used until it is being used," technology analyst Rob Enderle said.
He said Apple "is pretty good" at getting people to use new technologies, but it could take years for iBeacon to mature and reach its potential. He said Google, Microsoft and other tech companies will likely follow suit with their own location technology.
Last month, Apple Inc. began using the technology at its 254 U.S. stores to send you messages about products, events and other information.