Originally Posted by abhibeckert
Ram makes one, but they advertise it as disabling touch screens. I've read conflicting reports as to wether or not it really does disable them. I suspect it might just be really thick and make the touch screen difficult to use.
I think that this is due more to the variances in types of touchscreen technology on the market. I am NOT even close to an expert on these things, but I think that resitive touchscreens are much more likely to be usable under more layers of protection. Capacitive touchscreens (as I understand it) rely on the electrical current in the human body to trigger the input, restive relies on the physical shorting out of layers in the screen by pressure.
I don't think (but I'm not sure) that Android devices are standardized across the board as the iPhone is.