If you are doing it for fun, or to learn a new language or platform it can be a good platform to play with. I say that because it is simple overall, has consta

If you are doing it for fun, or to learn a new language or platform it can be a good platform to play with. I say that because it is simple overall, has constant changes being posted and is reasonably open. But I'd have to agree with chmaynard that it isn't worth your time to build an app for any other purposes other than if you are wanting to learn or experiment. I have seen probably 5-6 different apps get created over the years (which I am sure is a small subset of what has happened). All these apps are always abandoned after a short time cause there is no real end benefit for someone to build and maintain an app for HN. Just my 2 cents.