Is there such thing as a "combo" interface board that will allow you to wire up joysticks, buttons, as well as trackball/spinner? It seems like it would be a nice product to have available for smaller projects, rather than paying full price for (as an example) both an iPac and an OptiPac and only using a fraction of the inputs on each.
I realize it would need to have two output cables, but I think such a product would provide nice cost savings and packaging efficiencies.
Thanks