Hi,
to keep you informed: We have now copied the RapidMiner online documentation to our Wiki, using an appropriate template. We are now working on the way back to have an offline copy in RapidMiner, but the current SVN version already displays a link to the WIki. This is still in beta stage, but we hope the conversion to Wiki links and formatting has been working in most places :-) The rest of the work will have to be done manually :-)
The Wiki is linked from the Rapid-I web page. You'll find it here:
http://rapid-i.com/wiki/index.php?title=Main_PageBest,
Simon