Superpipes is a small project that I built during this weekend (it's already 6:30PM here in western Europe).

Superpipes is a Yahoo Pipes equivalent, using Superfeedr (which means it's realtime). It's a node.js app, easy to configure and deployable on Heroku.

It aggregates multiple feeds in one (or many), and can serve the output as Atom, Json, or HTML (but it's ugly!).

Let me know what you think!

https://github.com/superfeedr/superpipes