The only time we noticed a bit of pause was when we tapped the touch-sensitive buttons lining the bottom of the 4-inch screen (these include menu, home and back, in that order).
The screen and bezel work well with each other (at times you feel the bezel is also touch sensitive), the glass reaches just right up to the top and bottom of the Z10 with carefully left spared space for ear piecre an mic, this is occupied by two strips.