I saw Mara Yamauchi on TV last night.....she is also sponsored by a running shoe company, not Nike. I did wonder if she would have been so unhappy if her sponsors had developed the Superfly shoes and if it had been her using them. I think that the decision strikes a fair balance. Those athletes who want the superfly type shoes will be able to purchase them, but sponsors won't be able to give their athletes shoes which aren't available to everybody. I think that the decision should have been laid out in terms of principle rather than specifics though otherwise when the next thing comes along which isn't superfly type then it will all be to do again.