BizTalk Server 2010 is an integration server that provides connectivity, Business Process Management (BPM), and SOA/ESB capabilities. It also includes Business to Business (B2B) integration capabilities, Adapters, Accelerators, and an RFID platform.
BizTalk Server 2010 Enterprise Edition is designed for customers with enterprise-level requirements for high volume, reliability, and availability.
BizTalk Server 2010 Developer Edition is for development and testing purposes.
BizTalk Server 2010 Branch Edition is a specialty version of BizTalk Server designed for hub and spoke deployment scenarios including RFID.