Google have finally updated their toolbar pagerank for this site, not just on the front page, but also a lot of the deeper pages. Not all of them – some of those devoid of pagerank should probably have some, others probably shouldn’t especially moved content that hasn’t been given enough love.
Matt Cutts has mentioned there is a pagerank export in progress.
Pagerank reflected on your toolbar has no effect of your search engine traffic, as the pagerank used by the various data centers is different to that used for your Google Toolbar. Toolbar OageRank is just historical data, often up to 3 months out of date.