It'd be hard to get me to switch away from newsblur.
I've been waiting for a service that relied on published open source code, but still had a hosted option. I'm much more likely to pay in this circumstance.
Yup: http://github.com/samuelclay. And the hosted option is at www.newsblur.com, but you can host your own. It's a buck a month to have me host it for you (and do all the necessary feed fetching).