I developed wrist pain from using that mouse. I wish Apple would care more about ergonomics.
Microsoft and Logitech have a couple of really great devices for people who have joint issues. And with programmable buttons, most of the gestures aren't really necessary (the only thing I miss is the nice horizontal scrolling)
I get terrible pain if I use the Magic Mouse for more than an house, which disappared after I switched to another mouse. One thing I dislike about the Magic Mouse is that if I rest my finger on the 'button' area it registers it as a click so I always have to hover my fingers above the 'button' area—something I suspect contributed to my pain. With normal mouses I can rest entire my hand and fingers over the mouse and the only force I have to do is when I press the buttons.
Me to when I moved to using a mac mini my right hand pinkie finger started to ache - I then unpacked the 10 year old ps2 MS mouse and a 20 year old keyboard and switched to that.
Microsoft and Logitech have a couple of really great devices for people who have joint issues. And with programmable buttons, most of the gestures aren't really necessary (the only thing I miss is the nice horizontal scrolling)