FYI, there is some new training and documentation available for the upcoming release which provides iPad support and integration of Yammer with CRM Online.  There are a few new articles in the December 2012 Service Update – Important Information for Administrators article. There are also six new videos in December 2012 Service Update Training Videos to cover iPad and Yammer items.  Lastly, out on the Resource Center there is a good What’s New page that currently has information covering items like the Yammer integration, iPad support etc.