Some members of the Android crowd have been able to happily make gratis calls throughout the US and Canada with NetTalk's app offering for a while now, and today the calling service is pushing out a new version in hopes of improving the all-around user experience. For starters, NetTalk's stuffed a revamped UI inside v2.1.1, while there's also the addition of a couple of in-app features that let folks buy credit to make international calls and sign-up for an account straight from within the application. As NetTalk's CEO, Anastasios Kyriakides, assertively po
