This document discusses hybrid cloud and on-premises deployment models for Office 365. It highlights key capabilities including support for multiple devices and platforms, an immersive touch experience, online and mobile apps, enterprise-grade reliability, and common management across Office 365. Identity options are also summarized, including cloud identity suitable for small organizations, federated identity for medium and large organizations, and federation protocols like ADFS that support single sign-on and integration with on-premises directories. Office 365 offerings are shown for different organization sizes from 1-10 users up to 500,000+, and an example server configuration is provided for a large SharePoint farm.