No, and that's why they still provide the RSS feed. My point is that in the immediate future, companies like FB, Twitter, and NY Times will experiment with APIs

No, and that's why they still provide the RSS feed. My point is that in the immediate future, companies like FB, Twitter, and NY Times will experiment with APIs that provide richer functionality than RSS. Hopefully within a relatively short time frame, the APIs will start converging into a standardized, widely adopted replacement for RSS that builds on these ideas.