If you owned Viber and saw Facebook make a big deal of in-chat shopping, what would you do? Bake shopping into the very heart of your messaging app, apparently. A few months after including an Instant Shopping feature in Viber, parent company Rakuten Viber has snapped up the feature's architect, Chatter Commerce. The deal gives it full control over a keyboard that lets you browse store catalogs and either share them with your friends or commit to a purchase. You don't have to jump to a separate app or the web just to share those great shoes you found.