My site has reached PR4 now from PR6.
there's a similar thread already created http://www.netbuilders.org/promoting...ate-13379.html
I got a great new years gift from Google's PR!
I just bought Blogger Den / It's like Digg, but for bloggers! about 2 months ago at a PR0 domain, and I built it all the way up to PR4 in a matter of 2 months. I'm very proud of my work, I have to say!