2015-08-18 Google Play services 7.8 - Let's see what's Nearby! | Android Developers Blog http://android-developers.blogspot.jp/2015/08/google-play-services-78-lets-see-whats.html 超音波通信入ったのか。 Nearby | Google Developers https://developers.google.com/nearby/?utm_campaign=playservices-78-815&utm_source=dac&utm_medium=blog