As a user I don't feel the need for multiple newsfeeds. The people I'm friends with on Facebook (and pages that I have liked) appear on my newsfeed for a reason - because I'm interested in seeing what they have to say. If I don't want to see certain posts, I remove or mute the connection!

I can, however, see why people might like the idea. If you're looking for something in particular, or follow a huge amount of accounts, it is a nice way to separate/filter updates.

Does this mean that businesses have more or less chance to be seen? It's hard to tell really - they're either going to be lost in a feed that someone never checks, or will be seen more often in a feed with fewer, but more targeted posts.