Perhaps slightly off-topic, but I suspect it’ll be used by multiple IoT devices… Excerpting from Eric Zeman’sProgrammableWeb article:
Google today announced the People API, a single API it hopes will eventually be able to replace both the existing Google+ APITrack this API and Google Contacts APITrack this API. The People API will allow developers to snag connection data from authenticated Google users with a single call, rather than multiple calls — and that’s good news for everyone. As Google explains it, the People API will eclipse the Google+ and Contacts APIs because it uses the newest protocols and technologies. The Contacts API, for example, uses the somewhat dated GData protocol. The People API can reach into users’ private contact lists (as long as permitted) to see if those contacts are linked to other, public profiles. Google says properly granted scopes will return results as a people.connections.list object, which can then be used to snag more data about the person in question. In other words, it will allow developers to connect more of the dots that exist between Google users. […]
https://developers.google.com/people/api/rest/
https://people.googleapis.com
https://developers.google.com/people/
http://m.androidcentral.com/androids-new-people-api-helps-developers-more-easily-tap-contact-data
https://developers.google.com/+/web/api/rest/latest/people
http://www.programmableweb.com/news/google-people-api-lets-devs-poke-through-users-contacts/2016/02/10
Firmware Security 