ORM for D inspired by (but not really based on) SqlAchemy.
I'm currently working on a DB-independent expression language. If your project uses a database engine not officially supported, you will be able to create and use your own engine.
I plan to support SqLite, MySQL, Postgres, and possibly MS SQL Server. My goal is to support at least all DMD compilers (final patch versions) released within the past year.
Nothing here is ready; if you're looking for a current ORM solution, take a look at: