Page is a not externally linkable
-- Google SEO News and Discussion
---- Why doesn't Google include the real PageRank in Webmaster Tools?
JonW - 4:49 am on Jan 6, 2011 (gmt 0)Thread source:: http://www.webmasterworld.com/google/4249676.htm
The reason we all want to see pagerank is to tell how our site(s) are performing, just like all the other stats provided.
Since you'd have to verify and login, its not as likley to be abused as the toolbar.
Brought to you by WebmasterWorld: http://www.webmasterworld.com