All of them!!! and Linux too. Notice apple has joined. Any boxes that we are not in will not matter. We are moving into the world of trusted ecommerce and I believe there can only be a single ultimate root of trust and Wave has always held that key. Of course, I may be wrong, but somebody explain to me if there are two roots of trust...how do they trust each other? Wave IS the trusted third party -- IMO. MSFT can't be.