I'll second this, I've been using the original Logitech Trackman Marble for many years both at home and at work. I've never found anything more comforatable and for those of us with cramped or cluttered workspaces, no need for space for a mouse pad.
I tried one of the newer ones (with the wheel in place of the center button) and did not find it nearly as comfortable. Gave it to my 6yr old daughter and she seems happy with it. Certainly likes it better than the mouse she had before.
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I'll second this, I've been using the original Logitech Trackman Marble for many years both at home and at work. I've never found anything more comforatable and for those of us with cramped or cluttered workspaces, no need for space for a mouse pad.
I tried one of the newer ones (with the wheel in place of the center button) and did not find it nearly as comfortable. Gave it to my 6yr old daughter and she seems happy with it. Certainly likes it better than the mouse she had before.