From experience using a touch screen, a few pixels wide will not do it. Also, that yummy mouse-over effect you rely on is useless with a touchscreen. I think there should be a key-binding at least to resize. Currently there is a menu option for single-click users already (icon menu in the title bar) so it is not prohibitive, just not intuitive. Maybe a resize title-bar button for a finger-friendly theme ?
From experience using a touch screen, a few pixels wide will not do it. Also, that yummy mouse-over effect you rely on is useless with a touchscreen. I think there should be a key-binding at least to resize. Currently there is a menu option for single-click users already (icon menu in the title bar) so it is not prohibitive, just not intuitive. Maybe a resize title-bar button for a finger-friendly theme ?