Started our website in July of 2010, and still at PR 0 after this January 20th update, unfortunately. I was surely expecting some page rank after this update. In my research, it seems that there were more PR updates for Blogs more than anything.
I also had heard a lot of buzz that Google is not considering page rank as a big ranking factor, as they were before. Their license is expiring on the page rank this year and not sure if they will renew.
Webmasters do still put more of a value on page rank for resale of websites. Hoping for a PR ranking sometime this year.