A Tool To Help Manage Internal PageRank Distribution
After reading the post, it appears that this tool does some pretty intricate and detailed analysis of your internal navigation and helps you determine how to make adjustments to your link development to best allocate your most important pages in the search results.
I understand that toolbar PageRank is not the answer to all SEO problems. But it is somewhat of a sign and like the blog post said, if you are a control freak, this tool may be for you.
In short, this tool enables you see and control PageRank distribution in a more informed manner.