Bring it down a few notches and you are almost spot on. Interactive documentation could help with the osmosis of info onto the brain. The only problem is that documentation writing is everyones favorite past time. (not).
I've done some work using Macromedia captivate and recently tried out Wink. both are tools that can be used for creating "videos that leave you with some form of knowledge". The idea i think is "monkey see monkey do" . personally I enjoy wading through man files but I think this can be quite intimidating for some. (Windows users

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I know this is a bit less than the scifi idea of subliminal learning but I think it does have a place in making normal learning a bit easier.
Thats my two cents worth.