I agree with that, but that doesn't solve the "I'm off line and I don't know how to use this" problem. Therefore, I would like to propose a development of the wiki idea:

1) Make a Wiki repository that is very easy to edit, even for non developers. Do it with standard naming conventions for pages, titles, folders, etc).

2) Export desired parts of the Wiki as static, navigable, HTML pages and place that on a standard location on the N900 device. That way, if the user clicks on a help icon on the application, the local browser is fired on that page.

3) One can even create a Maemo application that searchs for installed packages and fetches all the related wiki pages to the device.

4) There could even be a link on the device itself that navigates to the maemo.org help wiki, in order for the user to fix, edit or add something.

Please, go to the first post and vote for the brainstorm and the solutions...