I’ve restarted work on SQLite support for xPDO, and things are looking good so far. This will be targeted at PHP 5.2’s PDO driver for SQLite3, not the older sqlite2 PDO driver included with PHP 5.1.x that is no longer available via PECL. It may be easily adaptable however.
As a developer of an open-source software product that depends on MySQL, I’m very concerned with the recent upgrades at many hosts to a specific distribution of MySQL, version 5.0.51, that contains some critical bugs that affect many applications, not just MODx. And though workarounds can be found, it would require folks to patch installations, potentially reducing performance on complex queries, and generally inconveniencing multiple open source communities; it would sure help if MySQL could help stop the distribution of releases with such critical bugs.