The longer FaceTime is kept closed, the higher the chance that it will lose relevance. Skype has a proprietary protocol but is distributing the API, and has a m

The longer FaceTime is kept closed, the higher the chance that it will lose relevance. Skype has a proprietary protocol but is distributing the API, and has a much deeper penetration than Apple's products. With Skype working on every smartphone and computer, and coming to TVs and other appliances, few people will care that its protocol is closed. FaceTime will have a hard time competing...