Market link: https://market.android.com/details?id=com.mellort.hackernews ($1)
Dropbox link: http://db.tt/jlqIcBg1 (free: if you like it, DL from the market, too!)
I used api.ihackernews.com for the data. Unfortunately, some of the pagination from that source is broken, so I can only return one page of results. In the future, I might play around with creating my own API server on App Engine.
I'm not sure what my plans are for the source yet, but I'd like to make it open source. If you're interested, let me know, and I can prioritize cleaning up the code.
This was a make-it-work-and-publish-ASAP project, so there are obviously a lot of things that could be added, but I'd appreciate any feedback, regardless. Cheers!