We've just gotten our first look at Sony's VAIO Duo 11, a "hybrid-style ultrabook" with a hinge that slides the keyboard in, turning it into a Windows 8 tablet. The touch-equipped device looks light as a notebook, but it's hefty as a tablet. The 11.6-inch device is supposed to weigh about 2.9 pounds, a little more than Microsoft's Surface, but it's not too difficult to hold with both hands. The display units have a separate supplementary battery, which adds significantly to the weight. The final battery time isn't set yet; Sony promises us a "full work day" with the supplementary battery attached once the tablet has been released. The version I saw used an Intel Core i7 processor with 8GB of RAM, but customers will be able to select an i5 or i3 as well.

Update: Video hands-on!