SharePoint 2013 Identity Model and claims aware apps

The new SharePoint 2013 Identity authentication model has lot of cool features, however configuring it the right way is absolute essential for our apps to be able to use it, here are some links which throw more light on that aspect

http://technet.microsoft.com/en-us/library/jj715264(v=office.15).aspx

http://www.harbar.net/articles/fimportal.aspx

http://thesharepointfarm.com/2013/06/using-an-external-identity-manager-for-sharepoint-user-profile-synchronization/