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 :-).
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.