> you can leave behind your smartphone more often... or for good

If I were spending $US300 on a phone, it ought to be my daily driver.

So I would assume this is for people who, if they do want to access social media on iOS/Android then they do it from the comfort of a large screen device such as a wifi-only iPad, tethering to their 4G dumbphone.

Oh and there's nothing preventing an e-ink device from using a cloud addressbook.