Sometimes you're conveying additional information through the cursor. For example, the default cursor in Photoshop when using the brush tools is a circle that s

Sometimes you're conveying additional information through the cursor. For example, the default cursor in Photoshop when using the brush tools is a circle that shows your brush width, so that when using the brushes you know which area will be painted (see http://pe-images.s3.amazonaws.com/basics/cs5/preferences/show-crosshair.gif http://pe-images.s3.amazonaws.com/basics/cs5/preferences/sho... for example). Some other CAD applications show whether a line is freestanding or snapped to another through the cursor as well.