Shortly after TechEd, my friends at Pluralsight put me in contact with DZone.com to create a WCF 4.0 RefCard. The requirement for the card was to boil down the essential things one needs to have available in order to program against WCF 4.0 into 6 pages of content. WCF is huge, so the challenge was to only include the really important stuff. Please take a look at the card. I’d love to hear your feedback.