I'd like to contribute but before i choose there are some specs i'd really like to know. So far i see 3 proposed models, the Udoo basic, Advanced and Ultra all having different CPUs and RAM. Could you list the CPU models used and the difference between the 3? Can the ram for the Ultra be upgraded? The reason why the CPU model is important to me is because of the integrated GPU. I plan to run code on both the CPU and GPU but not all intel GPUs support openCL as there is a minimum hardware core and shader count for the GPU for it to run. Intel GPUs have the best openCL performance compared to nvidia and AMD GPUs based on performance per GPU core (not shader). Each GPU core for any brand of GPU consists of a bunch of shaders, units and stuff. To me the architecture is important. How will the cluster work? Will it be connected via some interconnect? Stackable on top one another? Have all the features the ultra has? I wish you could shed some more light on the details of the Udoo x86.