The New York Times says that Dan Brown's book has become Barnes & Noble's best-selling single-day adult title, which means that it has not toppled the mighty Rowling from her throne. The Lost Symbol is now at the top of Amazon's print and Kindle bestseller lists, and it will keep selling for quite some time.

I'm about halfway through it. Thus far, it is better than The DaVinci Code. Take that however you want.