In another thread far far away, the mentat Dries Buytaert declared :

Hopefully, it also means that, in future, we can support databases like Oracle with fewer pains. One day, it might turn out to be really important, but until then, it's just theory, of course. :-)

I think that coincides nicely with the Java port of Drupal that is under way. We are using SVN for that project too ... :-)