Adobe has released an updated version of Tour de LiveCycle. This tool covers the entire LiveCycle ES 2 suite which is far more than simply data services. Topics include process management, rights management, document security, developer tools, end user interfaces and much more. There are over 1,000 pages of content and samples!
If you are curious about LiveCycle, this is a great exploration tool. If you are already a LiveCycle ES2 user, this is a great reference tool.