Here's another interesting crowdsourced FPGA project. Basical leveraging off Arduino, but adding a different style of perpheral interface.
crowdsourced FPGA multicore cpu with virtual peripherals
This seems like some of the "many small cores" projects of the past, but with an application in robotics and small devices... I wonder about applying this to UAV's, or even assisted flying. Stability management.
The project includes an emulator, which is a very cool idea. You can try out ideas easily and quickly to see how they adapt.
I want to look more deeply into it's simulation environment...