WhatsApp seems to be working on multi-phone and tablet chatting
by Mitchell Clark from The Verge - All Posts on (#5YP2G)
You've been able to link your account to multiple computers for a while. | Illustration by Alex Castro / The Verge WhatsApp seems to be working on a feature that would let users chat with the same account on multiple phones, or on a phone and a tablet, according to a screen found in a beta version of the app by the site WABetaInfo. The screen gives instructions for registering the device you're using as a companion" by scanning a code with your main phone - though currently there doesn't appear to be an actual code to scan.
A screen found in a previous beta showed that devices could be getting the ability to sync recent messages, even though they're end-to-end encrypted. That screen, combined with the Register Device as Companion" screen that instructs users on how to use WhatsApp on another device, adds up to compelling evidence that this feature...