This is a very good point, and shows some small thinking on facebook's part. Let's also not forget that regularly, when Facebook/Google/etc launch a feature whi

This is a very good point, and shows some small thinking on facebook's part. Let's also not forget that regularly, when Facebook/Google/etc launch a feature which is competing with an existing start-up, the start-up often wins (somebody please give me examples here, I'm struggling to come up with any, but I'm quite sure they exist). Should facebook care if a 3rd party is implementing a feature on their platform vs them supplying it themselves? Facebook's business model is to get data and sell ads. I don't see how this Prisma's live video would affect either of those things negatively.