However, all modern smartphones have Wi-Fi built in, and wireless networks are common enough in indoor spaces that an app could easily scan for known access points and calculate your position using trilateration.

FORBES: Smartphone Location Tools Are Great ... Until You Get to the Front Door

Computer geeks call it war-driving or Net stumbling: roving around with a Wi-Fi-enabled laptop to scan for nearby Wi-Fi access points, then trying to see if they can use them for free.

FORBES: The Days Of Wi-Fi Scanning Are Numbered

We are confident that users will deeply appreciate the ability to print, scan, copy, fax and access Internet wirelessly, all through a single device that is incredibly easy to set up and use.

ENGADGET: HP's new all-in-one printer adds more to that 'all', turns into a WiFi hotspot