Photos: Vertical mice and other input oddities

The Zero Tension Mouse comes in three sizes for a more precise fit with a user's hand. Depending on the size, the device is roughly 4 inches high by 3 inches wide by 5 inches deep.

The Zero Tension Mouse is compatible with both Mac OS and Windows.

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By Bill Detwiler

Bill Detwiler is Editor in Chief of TechRepublic and the host of Cracking Open, CNET and TechRepublic's popular online show. Prior to joining TechRepublic in 2000, Bill was an IT manager, database administrator, and desktop support specialist in the ...