I didn't read it, no. But looking at the website and the actual Firefox app right now, version numbers are still a big part of the picture. A release cycle doesn't become more rapid just because they're using major version numbers in place of minor ones. I get and support the idea behind a rapid release mechanism instead of holding back a release in order to wait on incomplete features, but still this version number thing seems like a stunt to me that has little to do with the actual release policy.