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What is the maximum size limit for a touchpad?

What is the maximum size limit for a touchpad?

This is more of a hardware question, but i wanted to know: what's the maximum feasible size that a touchpad can be made? I am wondering because someone remarked to me the other day that the surface on an iPod Touch is basically a touchpad, so how big can they be?

Asked by: Guest | Views: 61
Total answers/comments: 2
Guest [Entry]

"Well, technically, there CAN be a limit - Being as big as to consume too much electric energy that the computer's power supply can't handle. This would-be size is too big to be functional and practical for a human user, however.

So, practically - You can have it as big as you need.

Take a look at: Wikipedia's entry about touchpads."
Guest [Entry]

My FingerWorks keyboard has no keys -- instead, the entire surface of the keyboard is a giant touch surface. (More info here.)