I missed the release of this nifty new Go Pro mount from Paul Components that mounts your camera right over your handlebars. The new stem cap GoPro mount from Paul works on all 1 1/8″ stems for all GoPro models.
It is American made out of 6061 aluminum and is available in black or silver. You can still use the GoPro Pivot Arm with this mount so you can achieve a little more height and greater adjustability.
If a GoPro mount is not your top priority they also offer a stem cap light mount that is installed the same way and can be used to also mount a computer, power meter, or GPS unit.