Sony Ericsson Z-System Trademark – PlayStation Phone

Sony Ericsson Z-System Trademark – PlayStation Phone: "Sony Ericsson Z-System Trademark – PlayStation Phone Sony Ericsson Z System Trademark PlayStation Phone Yesterday. The phrase Z-System was seen on the top left of the screen. After a bit of digging around it appears that Sony Ericsson also own a domain called z-system.com and that a Word Mark (trademark) of Z-System is also found"