Hacker News Reader

Right, this one and http://www.hnreplies.com/ make HN useful.

That looks really useful! Both of these are closed source I guess?

100% this. It's the best way to keep up with HN without having to worry about popularity re-ordering and posts falling off the front page.

Concur. Hacker News without hckrnews.com would only be about half as useful.