This is going to sound curmudgeonry but it is seems like one more way search engines want to use your data without giving you the page view. It makes allot of technical sense and I can imagine some really great ways to use this data but in the end I guess I would just need to ask "what's in it for us- the content providers?"
I think that's shortsighted thinking. This is about improving the user's search experience. If that happens I think everyone wins. Most mainstream users are not tech savvy. Imagine a traveling person arrives in a city and spontaneously decides to see a movie. They enter the search 'good movie playing in nowheresville'. As it stands now their query will likely be matched by the keywords 'movie', 'playing', and 'nowher…
This announcement is not the proposal of a new technique, but rather the extension of one which is already working and is a good thing for the web.