This is kind of interesting. The Wall Street Journal is reporting this morning that the popular voice call app Viber has agreed to a deal to be acquired by Rakuten for $900 million. For those unfamiliar with the e-commerce giant, it's essentially Japan's version of Amazon.
Viber is available on all major mobile and desktop platforms, and is one of Skype's biggest competitors with over 300 million users worldwide. It was one of the first apps to allow 3G VoIP on the iPhone and it now supports land-line calls, messages and even push-to-talk...