A user interface (102) for a touchscreen (106) is provided. The user interface (102) comprises a physical overlay (108) having a rotatable guide wheel (110) with access through-holes (112, 114) formed therein. The touchscreen (106) of a portable communication device (104) can be accessed though the access through-holes (112, 114) and controlled via the rotatable guide wheel (110) without having to view the screen. Fingertip insertion into the access through-holes (112, 114) activates and selects different predetermined functions, while rotation of the rotatable guide wheel (110) controls variation for each predetermined function. The user interface may (102) be incorporated as part of a carry case, holster (130), harness or formed as an attachable and removable overlay plate (308) to correspond with the touchscreen (106).