Allo better be able to accept Gtalk messages or I will be pissed. I have told everyone in my family "if you want me you better be messaging me on Hangouts" only for them to kill it.
This.
I use Hangouts because I can reply to any message on any device, and it's also connected to my Google voice number.
If their plan is to make Allo strictly mobile only with no desktop, tablet, or Google Voice integration, then screw that.
We all know Google's MO. If there is a new Shiny the old one will be neglected and eventually shitcanned after years/months of neglect.
Google talk it more than Hangouts, it is Gmail chat too.
Pretty much.
It's possible that Hangouts could go the way of the Google Voice app.
After Hangouts got Google Voice integration, there has only been 2 updates to the Google Voice app the past few years. What were the updates? Pretty much absolutely nothing.
Google has a history of having several department teams working on differnet products to compete against each other.
Google Talk vs Hangouts, Gmail vs Inbox, and now Hangouts vs Allo.
Eventually one will go the way of the Dodo bird.
What they're doing is certainly cheaper than spending $20 billion to buy Whatsapp, Snapchat, or Telegram.