Office 365 Beta Service Descriptions
These documents provide a detailed description of the features and functionality of Office 365 services currently in beta.
Microsoft_Exchange_Online_Beta_Service_Description
Microsoft_Lync_Online__Beta_Service_Description
Microsoft_Office_Professional_Plus_Beta_Service_Description
Microsoft_Office_Web_Apps_Beta_Service_Description
Microsoft_SharePoint_Online_Standard_Beta_Service_Description