the Acorn board is real and running on a test bed machine and a few are bench testing at Centroid HQ, also two have been sent out to Beta site testers that are just getting going with their installations. the acorn board is a 4 axis step and direction output cnc control board with its own dedicated motion control cpu, it communicates to a PC thru an ethernet cable and runs Centroid CNC software (the same software that is used on Centroid's M400 and T400 CNC controls) and is available in Lathe or Mill. The Acorn board will output a smooth step and direction output of up to 400khz! and can run stepping motors and AC brushless servo motors and drives. The Acorn board also has connections for spindle motor VFD control, encoder input, and 8 inputs and 8 outputs and is compatible with automatic tool measurement and probing devices. the price target will be under $400 for both the hardware and the software and release is set for spring of 2017.