You can't use one account for multiple devices, so this will be added to the ever growing pile of good concepts nobody will ever use due to the developers' disconnect with real life. What were they thinking? 'Hey, please add me on Ring, and add me again for the Ring on my tablet and again for the Ring on my phone and again for the Ring on my other computer and don't forget to add all of my Rings on all of your Rings as well.'