Rakuten, Japan’s largest e-commerce vendor (by sales) has tried to make a mark for itself (0ver the past several years) by expansion-through-acquisition. And, the firm’s purchase of Viber (once touted as the Skype-killer) is the latest attempt in that respect… for $900 million the firm purchased a viable competitor to Skype; however, the question remains if Viber will gain greater ubiquitous traction (unlike Skype it is not bundled with the world’s most used OS).
(Source) Financial Times: http://goo.gl/coHXZW