I am reproducing it verbatim below:
Standalone Discoverer 10g (10.1.2.0.2) clients are now fully Single Sign-On-compliant for E-Business Suite users.
E-Business Suite end-users who access E-Business Suite workbooks via standalone Discoverer 10g clients no longer need to dual-maintain user credentials in both Oracle Internet Directory and FND_USER.
With this upgrade:
- Users may access E-Business Suite Discoverer workbooks via Discoverer's Connection Manager feature from standalone Discoverer clients, with user credentials managed in Oracle Internet Directory (NEW)
- Users may access E-Business Suite Discoverer workbooks via E-Business Suite menus via E-Business Suite Home Page
- Users may access E-Business Suite Discoverer workbooks via Oracle Portal and the E-Business Suite Applications Navigator and Applications Favorites portlets
- Sun Solaris
- Microsoft Windows
For More Information
For full details, see Metalink Note 313418.1 (December 2005 version).
The note is titled "Using Discoverer 10.1.2 with Oracle E-Business Suite 11i", and has a Last Revision Date of 21-DEC-2005
Try this URL to directly access the note (you may be asked to login to Metalink first).
Also note, that the announcement above is meant to be shared with customers, lest you think I am divulging confidential info ;-)
Finally, please refer to the Metalink note for clarifications - I won't be able to provide you with answers in any great level of depth here.