PageRank is not important?

During these Google dances, we found PR has got some changes different from before. Somebody said that PR is getting less important, it's just a sign to evaluate our website if it's trustful. It's totally different from SERP, also not affects SERP of your site.

I think PageRank is not becoming less important, but more important, just evaluate a different aspect, compared with SERP. The old PageRank system includes only one sign to evaluate the quality of a webpage, that's unilateral and easy to be abused by someone.

A good webpage evaluating system should have more than one aspect to be considered. So, I think Google is starting to use a new arithmetic to calculatie PageRank, together with SERP, they are both the important factors to evaluate a webpage. It's more fair than before.

SEO professional should take care both sides to optimize their own websites, that's more difficult than before. That means a webpage which has good PR and SERP is the best.