Not sure if this has been 'invented' yet. For those of you who (like me) hate the bumper and would not let any case bulk up and hide your sleek iPhone4 but need the antenna issue fixed (and not with a wrap of any kind): nail polish! You choose the color, and clear is my preferred version. It can be applied over the full surface of the metal frame. Over the bevels and even over the glass edges next to it. A few coats all the way up to where you might touch it will suffice, and leave the other areas uncovered. Screen your front and/or back glass to your heart's content, and then enjoy the iP4 in all its beauty, as it was meant to be. (No, I don't have pictures. I haven't even done this yet, just thought of it under the shower. All my shower ideas work, though).