Bruce,
> Could Oracle modify PHP and JBoss so they work poorly with open source
> databases?
Sure. However, their communities can also fork them. That's unlikely with
JBoss which is corporate, but PHP is pretty close to forking already. If
Zend+Oracle tries to lock out MySQL from PHP, you'll see a fork real fast.
--
--Josh
Josh Berkus
Aglio Database Solutions
San Francisco