PageRank returns after being down for 60 hours prompting many speculations such as a new Ranking system - possibly TrustRank. I'm sure many link brokers will be grad and relieved to see its return. Even GoogleGuy posted a message on WebMaster World hours before it's return;

"I suspect that the toolbar pagerank will be visible again in a few hours or so--I'll ask around about it." - GoogleGuy