As you'll no doubt be aware having read our headline above, there actually isn't a 1GHz CPU at the helm, as AnandTech and IOSnoops report the dual-core ARMchip is dynamically clocked around 900MHz, likely in search of reduced power consumption.
Competition from Marvell Technology and ARM Holdings in handhelds is not insignificant, though McWilliams believes Otellini, by standardizing the core of all Intel chip designs and focusing efforts on new application markets, is preparing Intel for a fierce fight that it will win.