As mentioned in this new post on the php|architect website, the eZ Systems group have announced a new extension for their software (eZ Publish) to link with an Oracle database, under a GPL license no less.

This extension was previously only available under a proprietary license and was sold from $899 to $2999. It is now freely available. Last year, eZ Systems also released the Online Editor, previously only available under a proprietary license, as Open Source software under the GPL.

For more information, check out the project's documentation on the extension or just download it and get busy working.