I've made it past 20,000 indie books in total sold since February 2010. Not bad. (I've presumably sold a bit more than that, since I only have PubIt figures through the sixth.) I also noticed that at two-thirds of the way through the month, every one of my books has sold more copies on Amazon than they sold in all of December (well, except for Farthest Space, which doesn't sell enough copies to matter anyway). So for me, sales are continuing to improve. I hope this is true for everyone else, too!