The January 2009 edition of Inc. Magazine (http://www.inc.com) is reporting on “Skype on Steroids”. It is positioned to out-skype Skype.
The application is called VoxOx. It is available at: http://www.voxox.com/home.php. It is currently in beta. You get your own phone number, can consolidate your cell phone, your work phone & home phone along with email accounts and IM. There is only bit slight problem: it only provides two hours of free talk time or get more free calls by watching ads.
When I tested it, it was a bit slow. It is still in beta and slated to officially launch by the end of Q1 2009. Check it out and let us know what you think.