After spending some serious quality time with Sony's latest convertible slider Windows 8 tablet and Ultrabook in one, we have a very detailed review ready for you. The Sony Vaio Duo 13 is the much improved and larger sibling to last year's Vaio Duo 11. It has a better hinge, a much more usable keyboard, a larger display, a trackpad rather than pointing stick and battery life is doubled. Sweet. The Vaio Duo 13 is available with 4th generation Intel Haswell Core i5 and Core i7 ULV CPUs and Intel HD 4400 or HD 5000 graphics. It's not much bigger or heavier than the smaller Duo 11 yet it sports a roomy and superb 13.3" full HD IPS Triluminos display. It has a digital pen for note taking and art, dual band WiFi, Bluetooth, NFC and an 8MP rear camera.