

To (partially) remedy this, WhatsApp added web then native desktop support, but your phone remained the first and indispensable point of contact.

If you've installed WhatsApp on your phone, you're probably aware that you can't sign in with the same account on other devices. It's trivial to set up and, although most functionality is retained, it's still a little disappointing. Most beta app users should have it now, and it is making its way to non-beta users too. The feature started to go live for some users a few days ago, and appears to be spreading widely now. WhatsApp has been prepping support for multiple devices for months now - even longer if you consider its semi-functional existing web and desktop implementation as an intrinsic part of the process.
