Sure, some people need to learn basics. I spent ours trying to teach my mom how to move a mouse. But again my question: How would such a person know about "flossmanuals.org"?
And then... people without any clue will usually have a person (teacher, coach) who explains their new device to them. These people will teach them what you can do with a word processor or spreadsheet. From my experience, children understand these things extremely quickly - once it has been explained to them, they won't need to reread the lesson on flossmanuals.
What we really need is teachers and coaches who tell people about "word processors" "spreadheets" and "presentations" rather than "Word", "Excel", and "Powerpoint". It's really unfortunate that these MS products have become synonyms for their respective functionality in everyday language.
What we need even more is professional-grade documentation covering the gap between OLPC children and freaks who read the source. We need that documentation in many languages on the same level of readability and accuracy as in English.
I recently tried to find a good, comprehensive tutorial on writing Openoffice.org macros. Still didn't find anything (I recall an article in a German Linux magazine some time ago, or do I need to buy a book?). If I had looked for Excel Macro tutorials, I'd found a dozen immediately.