What cosel says is completely true. In the case of a company like Wersi putting out a system like the Abacus they can fine tune drivers that will work rock solid. Unlike the rest of the PC world that has to supply hardware and software that has to work reasonably well with any combination of software and hardware, Wersi know exactly what hardware will be on the Abacus. Writing stable software for known hardware has always been possible, even under Windows. It is much of the reason that the Mac has traditionally been more stable than the PC due to the fact that there are much fewer 3rd party options for that platform so less potential problems to deal with.