Adobe just announced a new Technical Communications Suite, and has included support for DITA Learning!
Full support for DITA standards
Take advantage of DITA 1.1, including support for Bookmap, Indexing, and Glossary specifications, and use the DITA 1.2 Learning and Training Content Specialization (beta) to develop compelling training content.
I'll definitely have to give this a try. The DITA Learning Content subcommittee is in the process of putting together more real-world examples using this standard that we've developed over the past several years. Maybe I'll try to put that together using the demo!