I've been in touch with Kris by email, but I will add my main wish list item here as well...
I gotta say it... Auto-scroll! Having just acquired a Nexus 7 and explored Moon+ Reader, I'd love to see both a standard auto-scroll, and a "rolling blind" style auto scroll. I do think MoonReader's 5 autoscroll modes are overkill, but simple pixel by pixel scroll, and rolling blind by pixel would be fabulous! And gesture controls for scroll speed, stop, start.
Most of my other wishes are already on the roadmap, but Goodreads integration/bookshelf syncing would be nice.