recently for the manuals documenting free-software
to be placed under a GPL-like license, so that they stay up to date with
the development of the programs they are supposed to document.
This is a good point, but may contradict my hope that
one can work full-time on free-software by living off the
royaltees from its documentation. On the other hand, there
in source format that are also published.
I know I buy Linux on a CD for ease of use, and a spiral
bound copy of a good book is invaluable, so people would buy
it. In fact I'm more likely to buy a book I have read
and liked, than an unknown. So maybe it's possible to sell
your cake and eat it. What do you think?