[fendale]

Over the last few months I have been seeing a push toward using Sqlite in production, where appropriate. Some of this has been coming from 37 Signals with their "Once" products, which use Rails and a SqliteDB.

Sqlite can go pretty far if you have fast SSD disk. The biggest problem is that your app is constrained to a single host. For many apps, with backups and a failover plan, that may be OK. For other its a non starter.