Fijuuu! Preberte tole.
In other words, if you get a link from what is currently a PR 3 site that gets huge clickthroughs, that will be more valuable than a link from a current PR 7 site that nobody even looks at.
Essentially, Google is going to consider the strength of your site based not only on the link you get and its link text, but also by the "votes" that link gets based on usage from Internet surfers (and it'll be calculated uniquely to cut down on shenanigans).
Further, the "votes" will be regionally based. So if you get a lot of clickthroughs from surfers in India (but none from surfers here in the U.S.), then your site will appear near the top of searches performed in India, but will be non-existent for searches here in the United States. This move too will cut down on shenanigans (hiring folks to simply find your links and click through them).
What it means is that all those sites relying on rankings by using companies like TextLinkAds are about to get a POUNDING … unless they are using in context links, which are a bit more pricey.
http://www.seochat.com/c/a/Search-Engine-News/Craziness-at-the-Googleplex/1/