In the WDC November Newsletter there is talk of FPGA Microcontroller boards. It looks like they have three FPGA boards, Rev A, B and C, which support various processors and peripherals. It also seems that the nitty gritty code and design files require an NDA to be signed by "Commercial Product Developers". I am mostly interested in the B board for 816 development but not if it turns out to be a "chip" in a locked box.

Does anyone here have experience with these boards?

I don’t have experience with these boards, but I know WDC have IP cores available for Lattice cpld/fpga’s. I would think that such cores comes partially precompiled into a subroutine form, but I don’t know for sure.