Thanks for posting that video. We visited the museum last month, and it was stunning. The Disney family did such a great job telling Walt's story that you felt like you actually knew him personally after spending just a few hours there. My family and I enjoyed it tremendously.
If you won't be getting out San Francisco anytime soon, Pete posted my audio review of the museum on iTunes (dated 3/10/10) for those who may be interested. There are some "spoilers" in my review, so if you are going soon, you might be better off skipping it and just letting the museum surprise you.