Well after a long hiatus and some crappy weather here in the North East, I've had the itch to finish development of this screen. Does anyone know if there is a beta of Mach4 available? I'd rather not put all the work into getting this running and not have it be compatible. From the sounds of it, there won't be an upgrade path due to the level of change to the core code and framework which tells me that screens won't translate either.