I recently got this question - Do I get LC Workbench and LC Foundation when I buy LiveCycle Data Services?
The answer is "No".
With LiveCycle Data Services you get:
1. LiveCycle Data Services server - It works with most application server, but ship with a tomcat based turnkey option
2. Adobe Application Modeling Plugin - This is a plugin to Flash Builder 4 that enables to do Model Driven Development of Flex applications. This is "New in 3.0"
Anil Channappa | Sr. Product Manager LiveCycle Data Services and Blaze DS
Adobe Systems Inc | 21-61 Hickory Dr, Waltham, MA 02451-1011