The first day I had my 350 I kept accidentally turning pages by trying to brush a speck of dust or a cat hair off the screen. The touchscreen is eally sensitive. Now I've learned to blow the dust off the screen or put it into sleep mode to clean it off. It would be nice to be able to toggle it on and off, but it is not hat big a deal to me. I find it is more comfortable to hold and swipe with one hand than to hold and press the page button with one hand.