Host Integration Server 2010 will be available for customers as part of the BizTalk Server 2010 release on October 1, 2010.
The following are some links to additional information for the HIS 2010 release:
Host Integration Server 2010 Datasheet
BizTalk Server 2010 and HIS 2010 Evaluation versions are available by clicking here.
Host Integration Server 2010 Documentation – Installation Guide and Readme
HIS 2010 MSDN Documentation
The following is an overview of What’s New in HIS 2010 (click the link for more details):
Application Integration (Transaction Integrator)
The following are features that are no longer included with HIS 2010: