If I only read 5 stories a day, I would probably go crazy. I normally check HN and other various sites 6-8 times a day on average. Cool concept though.
I agree with the fact that Apple made a smart move by controlling submissions to the App Store, but I think some responsibility lies in the owners hands in the case of Android. Too many download apps and never once look at the permissions involved before installing. For example if a ringtone app asked for geolocation, something is probably fishy.