This device is great and prevent RSI, are there better ones ?
HowTo configure on Linux : http://forum.ubuntu-fr.org/viewtopic.php?id=49793
Trackman-Wheel-Marble-Mouse
lsusb # Bus 001 Device 002: ID 046d:c408 Logitech, Inc. Marble Mouse (4-button)
cat /etc/X11/xorg.conf
Section "InputDevice"
Identifier "USB Mouse" # @ http://rzr.online.fr/q/USB
Driver "mouse" # @ http://rzr.online.fr/q/Mouse
Option "Device" "/dev/input/mice"
Option "SendCoreEvents" "true"
Option "Protocol" "IMPS/2"
Option "ZAxisMapping" "4 5"
Option "Buttons" "5"
EndSection