Re: [development] DB support as contribute: is it a good idea?

I recommend my blog post http://drupal4hu.com/node/123 and the linked sandbox http://cvs.drupal.org/viewvc.py/drupal/contributions/sandbox/crell/pdo/ instead of FUD and confusion. And yes, it is a very good idea to move db drivers into contrib -- provided that core is capable of proper support them. This is what Crell and I are working on.