1. I assume you're going to be adding new stuff to it daily ?For example a quick glance in the videogames section and a few 'popular' podcasts I listen to are missing.
2. Would be great if you could "bookmark" a point in a podcast. Here's my thinking. typically I would use this app at work where I can't install itunes. So if I'm in the middle of a podcast and the day is done, I can bookmark and resume tomorrow. (just one simple use case example)
3. Are you planning to add a rating system to it? One of the major problems I have with itunes is it's hard to find stuff because there's just SO MUCH. (doesn't make sense I know..)
All in all great app and I'm sure I'll be on it pretty regular.
p.s. cool domain name, can't believe it wasn't taken!!