This is a fantastic idea. I could see myself using this thing as a consumer too (ie not just for hacker stuff). May have much broader appeal than something just for hackers. Monetization should be fairly straightforward... You know what apps people have, sell very targeted ads for new stuff, sort of like a mint. Seems like a potential gold mine once you get to scale.

You should build something that searches through my gmail for common bills though, I don't want to go through the process of sending you all my bills