Via this note on php|architect's site today, there's some information about the Open Source Database Conference 2005.

Today, the doors have flung wide open and suddenly corporate data centers are making a beeline for open source DBMSs. Vital to this transition has been the growing number of partnerships and products aimed at maturing the product offerings, add-ons and support services -- the recipe to winning over corporate customers.

The first Open Source Database Conference 2005 has been sweetly timed to complement this maturing phase of open source database management software's evolution. Come, learn, share, network, and benefit from this unique platform.

They don't have sessions posted yet, but you can register now and get an early bird discount until Sept. 30th. The actual conference is going to be held in Frankfurt, Germany on November 8th-9th.