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Title: this is "cordless"?
Review: I bought this for a laptop to do Photoshop work on when my beloved trackball broke. I thought cordless might be worth it, but this "cordless" requires a plug in I/O unit as big as an average mouse. Might work for a tower unit, but having a huge chunk that will hang off a PS slot and a so/so designed trackball as a separate unit i also have to haul around is a non starter. Once I saw that huge chunky plug in unit that allows this thing to be "cordless" it went right back into the packaging and was returned. Why would you pay more for cordless when you end up with a corded unit to power your cordless unit?
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