I have been working with dOOdads for a while on and off.  This is an amazing tool and increases the speed at which I build applications.
I normally use it for web apps and use Microsoft Access, however it flexible in that it can work with many database formats.
Fundementally it lets you build your database interactions with a few lines of code.  So to add a record to a database you just set a few properties and submit one command and it’s all done.
The other thing is that it has the ability to create procedures in an Access Database.  Not sure how, but this makes transferring your app from one DB to another much easier.