this video gives you a short overview of a conference app I've written for "Eclipse Summit Europe 2010" in only 2 days as a prototype.
You have Sessions, Speaker and a Schedule - scheduled Sessions are automatically put into the native BlackBerry Calendar. From Sessionlist go to Details with Room, Timeslot, Speakers and from Speakerlist get details like Bio, Sessions etc.
tested with BlackBerry Java SDK 5.0 on Bold and Storm - needs a SD card to store the SQLite DB.
development will go on - stay tuned: