The document discusses how WebRTC is being used in various real-world applications like customer service, distributed workforces, and education. It provides examples of companies like Valspar, Fluke, and Minerva Project using WebRTC to enhance customer service through live video consultations, enable remote collaboration between colleagues, and reinvent the university learning experience. The document also outlines some challenges around performance, hardware acceleration, user experience, and ecosystem fragmentation that need to be addressed for WebRTC to gain wider adoption.