The Washington Post (among many others) reports on a development from Facebook that may excite many more users than does the much-hyped announcement about richer search capabilities: after launching a Canadian trial balloon not long ago, Facebook is expanding the reach of its free in-app VoiP communications with free voice comms via the company's smartphone app. "Excite" for some people will also mean "infuriate": to get the free candy, the recipient will need to have shared his or her number with Facebook, which many people will understandably be loath to do. From the WaPo article: "To use the feature, Facebook users must hit the 'i' info icon in the corner or a conversation or contact information page. That panel has a 'Free Call' button that you can use if your friend has shared a mobile number with Facebook and is available for a call. The company slowly has been building out the features available in chat — most notably with the 2011 Skype partnership that put video calling on the Web version of its site. When it released Facebook Messenger last fall, it became even clearer that messaging and mobile applications were priorities for the company."