The classic trackball mouse belongs to a niche crowd, but after using one, it's hard to go back to the more mainstream point-and-click method of navigation. Logitech has introduced a new wireless ...

The classic trackball mouse belongs to a niche crowd, but after using one, it's hard to go back to the more mainstream point-and-click method of navigation. Logitech has introduced a new wireless ...

Oh yes, that up there is Logitech's newest Wireless Trackball M570, which apparently caters to an "overwhelming demand of dedicated trackball users." Well, we'll be damned! At this point, we'd figured ...