Update – As mentioned in the comments on this post, there is now an 11 million video available. I am constantly amazed at the skill of all of you Dolphin Olympics players. I can barely crack 2 million myself most of the time
rssurvivor has posted a video of a 3 million point run in Dolphin Olympics. If you're curious about some of the techniques you can use to get a better score, check it out.