thanks also from me! After a very quick look I can say that the most part of the guide is from previous version, but this one looks much attractive than the previous one, and, of course, some new sections added about mobile sites. They have done a nice work!
They told webmasters to use nofollow before, just to deny it soon after. I would not believe 1/2 what the announcing. Not going to waste my time reading it. I know what I need to know.