Yea, I could have used this at a few rallys where I was too far from the stage. Good idea.
The ideal use case for Color then, is for events with large groups of people – like a concert or conference. Color ostensibly allows you to share your experience with that group; as well as augment your experience by giving you alternate views and allow you to see things that you’d otherwise have missed. ReadWriteWeb’s resident hacker, Tyler Gillies, recently used Color at a tech conference and noted that it allowed him to see slides from many different sessions.