I have a few 20x20 buttons (flat style) on a windows form (C# 2.0 if you're curious). No text on the control, just a fancy image/icon.<BR><BR>When that button is clicked, the funky 'selected' ...
Apple has tweaked the phone button layout in iOS 7 beta 4, replacing the original, full-width "borderless buttons" with more obviously defined targets for answering, dialing extensions or ending calls ...