Negative Positive
Title: Very frustrating to use, erratic behavior
Review: I really wanted to like this device, but it makes it very hard to do so. It is well designed, I like the size of the ball, but the button placement leaves a lot to be desired, especially the main button ("left"). There are two things Logitech must improve. First, this thing is a battery drain, which is expensive and environmentally unsound. Second, it's interface to the computer (Mac OS X) is strange. Many times the behavior is as if the left button is continuously pressed, it would attempt to drag objects I have no interest in dragging and so on. This device will end in the trash and I will buy a new trackball from another manufacturer. Other, less important irritants are erratic pointer movement and the fact that it does not work well in direct sunlight.
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