Remember New Coke? The product Coca Cola bet the company on but was rejected by consumers? Eventually it led to Coca Cola Classic, which was a success.

MS should take a lesson from them. It may be as simple as extending sales for XP until Vista is accepted. In the mean time it may lead to panic buying! It could be worse. Eventually MS will get Vista right. I have noticed that it is risky to bet against MS's deep pockets and staying power. But first they must get Vista right.