That's pretty good for such a specialized application, if you ask me. I'm looking to make decent passive income between BlackBerry, Android and iPhone app sales over the next few months, so a few applications with $100 monthly sales would be perfect for what I'm looking for.
Oh wow, thanks. It's definitely not as good as the Instapaper iPhone app, but I've been tweaking it over time and it's slowly getting better and better :-).
I wonder if developers that actually sell mass amounts of apps are noticing this too?