Sounded and behaved like the default narrator that comes with Windows. They all tend to rely on the same APIs, though, so what they “see” of the screen or the focused control is very similar.
Listening to the beginning of that video as a blind programmer I'm 99% sure he's using Jaws for Windows.
http://www.freedomscientific.com/Products/Blindness/JAWS
I program in Java and Eclipse for my day job but have found Visual Studio to be really nice to use and accessible with Jaws.