HN user
This is simply not true. There are several podcast apps in the AppStore that I'm aware of (Instacast, Downcast, Aural...) and certainly several I've never heard of. I've been using Instacast since before Apple's app came out and just recently bought Aural.
This seems like it could be a really powerful idea, especially if the solutions were ranked well on Google. As a wannabe hacker, I often find myself searching for solutions to particular problems I need to solve within a larger JavaScript or Python or whatever script only to find some large project that I have to spend tons of time dissecting just to see how that one thing works. If I could spend $5 to save that time, I surely would. And, sometimes seeing the solution in another language could even help find an answer in the language I'm trying to use. Of course, depending on the language, there may be an active community on the web or IRC that can answer my question in real-time.