I think that this is/will be the direction of every industry which hires people to do creative work, whether writing/hacking/design.
And the only way big companies will be able to persist is to create a mechanism for launching offshoots of themselves by investing in co-ventures between current/former employees/entrepreneurs and the company.
Creative accounting is why this does not work though standard channels. Hollywood loves to talk about sharing profit but never total revenue. A $40-million marketing blitz sounds like a great idea when they get a cut of that 40 million. Etc.
And the only way big companies will be able to persist is to create a mechanism for launching offshoots of themselves by investing in co-ventures between current/former employees/entrepreneurs and the company.