Over in Asia Skype has lots of competion, and Engadget is reporting that Line, a service that started in Japan and how is growing nicely, already with 45 million users, is adding some very useful, and social components to their service.
When I look back at Skype and their developer relations and API efforts all the potential was there, and still is, but what it has become is simply a cheap calling and IM service with some added capabilities like screen sharing and video. Nice but, it could have been so much more.