Quote: Inclusion of Microsoft Application Virtualization for TS with the 2008 TS CAL and 2008 RDS CALs Application compatibility and management are significant drivers of cost for many TS / RDS customers. By including the right to use App-V for TS as part of the TS & RDS CALs we have simplified licensing and enabled as many of our RDS customers to enjoy the benefits that App-V for TS provides. More info about the new RDS CAL and how it compares to the 2008 TS CAL can be found at: http://blogs.msdn.com/rds/archive/2009/09/04/what-s-the-difference-between-a-rds-cal-and-a-ts-cal.aspx