It appears to me that LinkedIn is splitting their API into separate categories (Profile API, Company API, etc)
Going forward everyone will have to register and be approved in only 1 of the categories, meaning that if you are in the Company API, you won't be able to utilize features of the Profile API.
I don't know exactly what that means as far as specific features, but my guess is that if you're a company you won't be able to access personal profiles and feeds. I could be totally wrong about this but that's what it looks like.