Hacker News Reader

Cool, I'll have to try that! Does it also pull PR's that live on feature branches in forks of the root repo?

It fetches all the PRs. Once you open a PR for a project (even from a fork), github creates a local branch for that PR in the upstream project.

Note though that doing a fetch will take some time the first time after you set up this - it will fetch all the historical PRs.