You know, there are a lot of good points in the C64 video. The most important combination of points, I think, is that the C64 was an inexpensive computer that was easy to use. Also, Commodore flooded the market emphasizing the ease of use and the low cost.
There is still no product that addresses this market today in 2005. A grandma and grandpa that could use the C64 to create a program to help her knit; I haven't heard of something like that on a Windows or MacOS computer.
AmigaOS is still the perfect candiate for this, but the A1 is still way too expensive. Workbench is simple to use. Put AmigaOS and Workbench on a modern day PDA chip, stick it in a small box with a keyboard. Provide a few program goodies, and sell it for less than $200 or even $100. Or create a PDA with AmigaOS and Workbench that can be connected to a keyboard and monitor for normal computer use.