There is some new content on OTN, around training and its looking pretty good.
- Getting Started with Oracle BI Publisher
- Exploring Advanced Features of Oracle BI Publisher
- Integrating Oracle BI Publisher with Oracle Business Intelligence Enterprise Edition
- Oracle BI Publisher and BI Discoverer Integration
- BI Publisher for Applications
- Creating PeopleSoft Reports Using XML Publisher
- Creating Reports in Oracle E-Business Suite Using XML Publisher
There's some neat stuff in there, in particular the Advanced Features, not really really advanced but some very useful subjects get covered, drillable reports, multi data reports and finally some data templates. I have not tried the Disco integration OBE but fully intend to take it for a spin later this week. Enjoy!