Microsoft is betting the future of its PC hardware business on enterprises with the introduction of a high-end portable called Surface Pro 3 that has a larger screen and more processing power than previous Surface devices, and makes no attempt to go toe-to-toe with the iPad. The device is bigger than a Surface Pro 2, sporting a 12-inch touch screen rather than 10.6, is built around a range of Intel Core (Haswell), low-power processors. Battery life is ranked at 8 to 9 hours. It's thinner and lighter than Surface Pro and has a longer battery life as well.