Announced in Sept 2012, this red filter sits outside the GoPro dive housing.
Like me, if you use a red filter now, you might have notice a pinkish tint around the edges of your footage in some of your shots. This is because you're dealing with the GoPro's dome lens against a flat port. However, this dome filter might just be a good solution! I'm eagerly awaiting its release.
Via Althea Aseoche