db4o and Transparent Persistence

So db4o supports transparent activation now, not actually instancing an object until it is first called. They claim the goal of completely transparent persistence has now been achieved. I worked with this a little before, about a year ago, and found it to be somewhat superior to the other ORM type sytems around. I'll have to play a little with the new transparency features, and see just how invisible it actually is.

db4o product announcement