Got my e-mail from Sparkfun "Hello, There are now 26 units of the Netduino Plus (DEV-10186) immediately available for purchase from SparkFun Electronics.".
I've got a shopping list of things I'm going to get from them and have held off until the Netduino Plus comes in.
By the time I got home to get my order together they were all sold out! Those things are selling like hot cakes!