It was obvious that google voice will fit into Hangout. Only shock is that it took Google so long to introduce it. No worries folks. If you are getting the hang of Google Hang out then this may make it more interesting.
Don't forget you will also get to make free calls to US and Canada. Calling other Countries rate is pretty economic as well.
If you still haven't downloaded your app, give it a try. You may be surprised.
