Otto,
Nice smooth and sharp....that is the key...I too have been experimenting with the video quality from the GoPro. I have a white, silver and now a black+3. Everyone keeps saying protune is the best for quality...someone will have to convince me of that.
Playing around for about a week now with the black and have found that 1440 @ 48fps gives good sharp video with smooth pans and yaws. Protune to me is like using the old soft focus portrait filter in my film days on an RB6x7 with an 180mm portrait lens. It is sharp but fuzzy! I am waiting on my 3 axis gimbal and Phantom 2 to come from Atlanta Hobby in a couple of weeks to do some aerial tests. Also found a new and better host for my videos that is truly HD without a lot of processing: flowplayer.org All of my post work is done in FCPX. Tell us more about the shoot and your amazing video quality. I do a lot of videos for business, industry and real estate businesses. Always striving for better quality and tapping other people's brains. Thanks for sharing your video. Keep up the great work.