Susan, you've left out 2.5 other routes. The .5 is muni nets; this is a variant of facilities-based competition, an important one with its own regulatory and economic tune. Another is mesh networks, which takes you off the high-fixed-price merry-go-round altogether. And the last is what we're doing now, which we should list if only to bring out by contrast the current path's absurdity. Notwithstanding, your main point, that the hard job in unbundling is that we need a sustainable economic model, is **the** key point as Weinberger and I pointed out in Paradox of the Best Network. More of my comments on your article at this article on isen.blog.