Ask HN: Would a Hacker News app that gives you "peaked" topic only be useful?

I've been testing out different Hacker News app on AppStore, there are 21 of them and I still haven't found the solution to: 1. Information overload problem - love the content and esp. reading the comments section but I couldn't find that many extra hours a day! 2. Having to read the same topics day in day out - it annoys me that I've to scroll through and read the same topics again and deciding whether I've read it or not before scrolling on

So I propose a solution as to how I would like to use it if I were to code the app myself. I love reading highly upvoted topics with plenty of comments and I fear that I will miss out on future comments which may be insightful in a life-changing kind of way. So in Version 1, the Hacker News app would: 1. Be able to highlight "peaked" topics by level. Just imagine the WiFi signal strength bar but for how peaked a topic has reached. To measure how peaked it is, there is a calculation for each topic whereby the comments posted per day is measured relative to the previous day. Sort of like measuring the deceleration of comments. 2. Grey out topics that I've read 3. Ability to Upvote and in my case also send the topic URL or the comments URL to Pocket

More features to come but that is what I would build first to save myself (and hopefully other passive consumers of information like me) tonnes of time. I hope Paul Graham and team is OK with it, since you could tell there is a small group of users who rarely posts comments unless we have a great gem to share.

Since I plan to learn RubyMotion, I was wondering if anyone is interested to join me in building this open source app? I've coded several Websites in RoR and my next frontier is RubyMotion.