I see a lot of people commenting on the death of hangouts/hangouts on air but if you look at it Google is trying to attack the market in two out of three areas, first is hangouts which they want to position to be an enterprise platform for companies. Second is Allo and Duo which is targeted at individuals. The third market would then be basic messaging and communication (SMS/MMS/phone calls) which seems to me that they want to leave to carriers as they have let Google Voice fade away and integrated it with Google Fi. Seems like Google doesn't want to try and tackle those three prongs all with one platform prevent two platforms, and that makes sense and seems like a great idea.
I don't get what the big deal is. The app itself is nothing to write home about. Just video chat with barely any interface. Almost feels like they released it before it was finished. There are literally hundreds of other apps that have done this for years, including Google Hangouts. And it doesn't really make sense to call it a FaceTime competitor. FaceTime is integrated into iOS. Maybe this is integrated into Android but it certainly isn't integrated into iOS.
Are people just upvoting this because it's Google?
Haven't seen anyone mention that Allo and Duo will work on Chromebooks that can run Android apps. Could be a powerful set of messaging apps if they eventually incorporate Google accounts. Plus, they'll likely be included as stock apps on future Android phones...
It sucks that Knock Knock feature is not available on iPhone. Hopefully with iOS 10 may be it is possible. Though this feature is really innovative and now I think every video chat service should have this feature.
The news hit a bit late for a typical tech release (9pm PT). Maybe someone broke an embargo. The site isn't online yet but likely very soon.
In the meantime, @joshconstine's take on the app.
Waffle