Looks like I touched a hot subject... Do you guys think Google will stick to pagerank forever and let someone else come up with something better?
PR will stay for now, at the very least it diverts attention of some webmasters who try to focus on PR rather than put more attention into other factors that have a much greater affect on SERPs. Google is probably smiling to itself at the efforts some webmaster place in chasing PR rather than the other factors affecting SERP results. Whilst it is good to see PR on pages of my websites (it helps with link exchanges as others think it is a good status) my real focus is on traffic, not only SERPs, but targetted traffic which can come from many places and not only Search Engines.