The rise of touchscreen Windows 8 PCs isn't a happy occasion for anyone who's been carefully keeping PC screens clean: years of slapping wayward hands have been undermined by an interface that practically begs us to smudge up the display. While we suspect it's really aiming for ease of use, Elliptic Labs may have heard that subliminal cry for cleanliness while producing its new Windows 8 Gesture Suite, a touchless