I agree with you 100% about the screenshots. Two weeks ago I was actively looking for a new RSS reader on iOS - I did look at Unread, but the screenshots totally turned me off - they just didn't show what the app experience would be like and I wasn't sure what to expect. I ended up buying Reeder 2.

I think if Jared updated the screenshots to be full view, real screenshots, showcasing a flow of functionality, he'd significantly increase his conversion rate. Same with the website - more / better screenshots and he probably would have had my business.