I solved that using a Nexus One until now. it has a trackball. i can scroll content and click any button on the screen with not even smudging it. but apparentl

I solved that using a Nexus One until now. it has a trackball. i can scroll content and click any button on the screen with not even smudging it. but apparently only you and I care about not having a finger on top of what you are reading.