I don't think it would be very useful to have RSS feeds in Google Now. I like Google Now because it tells me what I want to know right now, like that my flight is delayed or traffic is bad or here's how to get to that restaurant and you need to leave in 15 minutes. I don't want to know about a new article right now.
Perhaps. But the app has very little to say if you're not traveling or shopping. Personalized news would fit in with the "a push of personalized interesting stuff" model. On the other hand if its sticking to the "travel and shopping" model then I do agree news would be inappropriate.
You have cards for breaking news, and updates on stuff that you've searched Google News about (e.g. for the Boston bombing, I was getting regular updates on the situation. If you don't want to hear about it anymore, you can opt out easily.)
