When Microsoft chief Steve Ballmer called the new Windows his company's riskiest bet, not many knew what he meant. The reveal of Windows 8 was laying those cards out on the table: it's a belief that tablets will not only be popular but the primary way to compute. We're of the mind that, much like Waterloo in 1815, the stakes are so high that it's an all-or-nothing fight -- and while Microsoft win, Ballmer might also be Napoleon.