WTF is WF?

Ever wonder why there is WCF (Windows Communication Foundation) and WPF (Windows Presentation Foundation) but Windows Workflow Foundation is only called WF? This slide probably explains it: The WWF (World Wildlife Foundation) even forced World Wrestling Federation to rename itself to WWE (World Wrestling Entertainment). In a word, don't mess with the panda! Seriously, here is world’s most trivial and useless Windows Workflow Foundation (WF) application, best for beginners.