Yahoo's rolling out its new IM app today as Yahoo Messenger with Voice, another sign of the blurred line between instant messaging and VoIP. You can use this program as a Net phone tool to call any other user in the world and leave voicemail messages for free. Other highlights include drag-and-drop photo sharing, stronger spam protection and LiveWords, which lets you highlight text within your chat for an instant Web search. Of course you also get a bigger library of smiley faces. The Yahoo Messenger 7.0 beta has previewed these features for several months. Check out our roundup of five instant instant messengers with VOIP that could replace your phone. You can download the free Yahoo Messenger with Voice here. Stay tuned for our upcoming review and rating.