Ask HN: An app store for map/reduce jobs?

Our company has tons of social media data and we write our own map/reduce filters to perform various statistics, but I'm sure the imagination and skillset of the crowd vast exceeds our internal abilities. So we've been toying with the idea of creating a store where devs can create their own map/reduce jobs to run on our dataset. Our clients would purchase these "plugins", maybe on a monthly fee, and the devs get paid for each subscriber. The code would probably be in JavaScript, similar to how mongodb's map/reduce works with bson. Any interest out there?