Trackballs were legion in the 1990s, but the input method has largely fallen out of favor in the past decade both as traditional mice gained precision and as the public swung its attention to notebooks. For Logitech and a certain audience, though, the appeal of an in-place pointer is undeniable: it can be comfortable and more precise in the right conditions. We're reviewing the Logitech Wireless Trackball M570 today to see if a long-in-the-making refresh is enough to keep trackball users committed to the cause.
