There's now a go-live license available for both WF and WCF: http://msdn.microsoft.com/winfx/getthebeta/golive/default.aspx
If you've got a WCF app itching to go into production, now you can.
Today also marks the launch of the community site for WCF: http://www.windowscommunication.net/.
Very cool to see this happening. Just that much closer to shipping...
