Tech news site CNET reports that Google is testing voice calling directly inside Gmail, with free calls to the U.S. and Canada and very cheap international calls. Google hasn’t confirmed anything, but CNET’s screenshots (like the one above) look pretty convincing. The article also says its unclear whether the new feature would act as an extension of Google Voice (the popular one-number-to-rule-them-all service) or as a completely separate entity. The meaty part: More »