While some people view the trackball as a product from yesteryear, they would sort of be incorrect. Sure, the number of users still leveraging this type of a pointing device is quite small comparatively, but the ones that do can be very passionate. Believe it or not, there are some people that hoard them because they can sometimes be hard to find. Not to mention, some folks with handicaps depend on them too -- since you move the pointer with your thumb, it can be great for someone with limited wrist mobility. Heck, they are great for HTPC use too. Today, Logitech intends to…
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