A small simple example: you stick a small tag on the smartphone support his car. A bit of simple programming and hop voila. When we ask the phone in its holder automatically will activate the 3G connection (if not already), same for the GPS, the rotation of the screen activates and application Waze appears.
You can also stick a tag on his bedside table, and when we go to bed we go and hop over the phone, flight mode is switched, the brightness down and silently activates. In the morning, when passing a second time on the phone while the tag is reset to the correct values