Ok, I know that was a stupid post title.  But you have find it amusing that Windows Workflow Foundation (WWF) ended up with that TLA.

What is WWF?  Well, it builds workflow right into the operating system (Win Vista) so your applications can take advantage of it. 

Will this replace Biztalk? You ask?  I don’t know and I don’t think so.  Matt Milner has some interesting things you should consider though in that issue.  Thanks Matt for your input!