I am working on some AIR projects now. AIR has SQLLite embedded into it. While looking around for a good way to manage SQLLite databases, I came across a post by Critter Gewlas titled Easy Administration of an SQLLite Database.
There is a freeware version with a very solid feature set. The professional version adds a trigger management UI, a Query Builder and some other enterprise level features. View the features for both editions on the SQLite Expert website
Here are some screenshots:
A data transfer wizard
An Image Editor for columns containing images
In short, this is a no-joke program for managing SQLLite Databases. I plan on evaluating this program in the near future and will post my findings.