Interesting post about SL being the future of the web. I'm not sure I would go that far, but check it out Gweyneth's blogpost discussing Edward Castronova's comments on Terra Nova [HERE].
Check out the secondlifeinsider.com's post about Fabjectory. Some interesting possibilities arise out of this if you think about it. Using SL or any OpenGL software to create 3D prototypes is finally here.