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DPI has no effect on the size of a thumb relative to the size of an icon on the screen.

Smaller ipad -> smaller icons -> harder to tap



What i mean is a 44pt button should be the same physical size on an iPad mini and an iPhone 3gs. Nobody had trouble touching buttons on the 3gs


Of course DPI has an effect. An icon is a certain number of pixels in size, and DPI determines how that translates into physical size.




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