Use (offer) Podcast Index as back-end
I read on the blog post announcing this project that you rely on Fyyd for the back-end (refreshing feeds).
Not sure it you heard of this initiative yet, but podcastindex.org is doing something similar to Fyyd, but then (is my impression) on a bigger scale. It would be great if the app could integrate with the podcast index. They have quite a lot of enthusiasts, so if you put out a call, I wouldn't be surprised there are people interested in contributing code.
The advantage of the end-user for this integration would be the bigger catalogue available, and freedom of choice, of course :)