Thanks for the link Jim, that article is actually where I learned about it from. I think the biggest time saver is that I wont have to make the factory classes smart anymore, and they can be truely decoupled. Plus I wont have to write the same old remoting code.... again.
I was actually thinking of leveraging it in a db specific factory, e.g. a factory that would load various db specific assemblies.
The other neat aspect (IMO) is allowing other developers to code agains a published interface without them having to dig into your framework. They can just write the code against the interface, make the cofig entries, and violla, they are done and I dont need to extend my framework.