I think the new update is crucial and makes the matter of dominating SERPS a lot easier in my opinion. Let us assume that you can now create targeted images, named after specific keywords. Say you have blue widget as your keyword.
People read left to right so they will see the video, news, create a free book with lulu, create a blog to get a discussion going, twitter it and there you have it. More options. What has definitely happened is that SERP results below #3 must be getting creamed as the options in the eye tracking hot spot are picking up more traffic.