Spent some time today exploring Second Life.  Was able to see a lot more than just the basics (which is where I had been stuck).  Seeing the "real" second life world gives me a better idea of where this is all going.  I can see that the whole platform is still a long way from "full" development – but the progress is amazingly fast.  This does appear to be how the internet will be revolutionized.  Just a matter of when and not if.