I've just finished building the YaST documentation for openSUSE 11.0.
You can find it at http://forgeftp.novell.com/yast/doc/SL11.0/
Some pieces might be still missing as the documentation is built from
sources and there were huge changes in 11.0 concerning core and UI
sources (package splits, moving stuff, etc.).
Scripts and others thingies for building the documentation can be found