Google Duo is a video chatting app that lets you see callers before picking up | #Apps #Chat  | 21st Century Innovative Technologies and Developments as also discoveries, curiosity ( insolite)... | Scoop.it
From thenextweb.com - May 18, 2016 3:53 PM

Today at I/O, Google debuted its new chat app, ‘Allo‘ as well as a companion app (for video) ‘Duo.’

Duo is lightening-quick, encrypted and works on both iOS and Android. The team worked with WebRTC to create a new protocol that allows for instant creation of an encrypted connection, a feature that keeps you from answering the call only to be faced with a blank screen while you wait on both ends’ video feeds to catch up.