Below are some information on Office 365 and federating against webNetwork.
webNetwork can essentially act as a ADFS / Shibboleth server which Office 365 can be configured to utilize for authentication.
Notes:
Documentation is still a work in progress
Still needs specific information for eDirectory installs
Outlook fat client not functioning when SSO (federations) is enabled.
If you have a parent and a child domain you must federate the top level, you can not federate just a child domain.
Supplemental webNetwork Office 365 SSO Integration Guide
Some information to consider before federating : Office 365 : To federate or note to federate...
Some other URLS dealing with Office 365 / ADFS
Announcing support for SAML 2.0 federation with Office 365
Active Directory Federation Services Overview
ArcGIS Configure Active Directory Federation Services 2.0
Configure the first federation server in the federation server farm in Windows Server 2012
Federation Server Farm Using SQL Server
ittoby Web Application Proxy Server in 2012 R2
Microsoft Office 365 Community
Next steps for completing your AD FS installation
overview Connect to Applications and Services from Anywhere with Web Application Proxy
Prerequisites for installing AD FS
Troubleshooting Single Sign-On (SSO) - Google Apps Administrator Help
Verify That a Federation Server Proxy Is Operational
Where to Place a Federation Server