Went to Best Buy and Walmart. Plenty of console bundles with Kinect left, but Best Buy was down to 2 standalone Kinects left out of an initial stock of about 50 and Walmart had just 1 left (didn't ask their initial stock). I'm sure those are gone by now.
I asked the Best Buy employee about Kinect and he said they had been selling rapidly all day and even quite a few console bundles had been sold.