Brent wrote a really nice post on Frontier and Forking. I particularly like the comparison to the Mozilla project:
One possibility is something like Mozilla-like. With Mozilla, there is a base on which different applications are created. Some of those applications (Firefox) are cross-platform, and others (Camino) are not.
I am totally psyched about the upcoming opening of the Frontier kernel, as you can probably tell from my previous posts :)
