Skype’s acquisition by Microsoft was a big story. This should be, too. Japanese e-commerce giant Rakuten acquired Viber for $900 million, just days after the CEO of the mobile messaging player denied it was in acquisition talks. Rakuten said the deal is aimed at strengthening its global platform by bringing Viber’s user base to its e-commerce and digital content services. Viber has 280 million global registered users in nearly 200 countries and more than 100 million monthly active users.