Looks like it's only going to be on Netflix originals at the moment. But at least it's a step in the right direction! Wonder how long you can keep the content for after download?
Polygon said there are some non-Netflix movies that are available for download.
I too am very curious what the download policy is. I think you only get a few days on Amazon or stuff you copy off your TiVo so I wonder how much time Netflix gives you.