At this point, you should either know about Annie or be in love with it. Or maybe, just maybe, if you're a bitter old toad, hate it. I could accept that. If you don't know what it is, go, look at it, like, now.
This is the bugtracker for Annie. It's a great place to figure out what's wrong with it and what still needs to be done. Most of the development discussion happens on the Annie forums, but discussion here really would not hurt. Or at least some slightly more formal stuff. Y'know?