So the SL Beta has been released and so far I'm happy with the implementation - normal and specular maps can easily be added to existing objects and even with very basic building blocks, the visual effects that can be created are amazing.
That said I am curious if there are any plans in the works to add the new maps to the skin and clothing layers for the basic avatar? I can see where some of the alpha quirks might need to be worked out, but the addition of these options at the avatar level could give a dramatic and much needed boost to its appearance without having to rebuild the model from the ground up.