Smartphone Radar allows you to keep track of when your family's smartphones were last seen on your network. Since our phones are generally always with us, it's a fairly reliable way of letting Indigo make some clever decisions. Some examples might be:

1. All the family members are not home yet, leave the porch lights on a little later tonight.
2. Nobody has been home for hours, might as well adjust the HVAC to save some cash.
3. It's really late and your daughter is still not back from her date, maybe Indigo should wake you up and let you know she broke curfew.
4. It's dark outside and nobody is home, maybe Indigo should play with the lights to help ward off potential burglars.