With the now-shipping Windows 8 fully controllable by touch as well as mouse and keyboard, you're bound to see some innovative portable designs such as the Dell XPS 12 Convertible Touch Ultrabook that take advantage of touch. In the XPS 12's case you can rotate its 12.5-inch touchscreen to face outward when the laptop is closed, turning it into a tablet. Clever, though the company might have taken it a step further.
Overall, the XPS 12 works well in its dual roles. It's a fully functional laptop with no obvious compromises, and as a tablet it works as well as anything else. There's a dedicated Windows button that mimics the Windows key on the display itself so you can easily switch from the new Windows 8 UI Metro interface to the Windows 8 desktop when the physical keyboard is hidden.
Build quality and ergonomics
Materials specialists will have a field day perusing the XPS 12's physical specs. The display is covered with Gorilla Glass, the frame is aluminum, the base and top of the unit are carbon fiber, and the keyboard deck is magnesium. The only thing not mentioned in the literature is the unit's radar cross-section. Seriously though, it's a tough unit.
Notably, despite the space age materials, as a tablet alone the XPS 12 would be overly thick and heavy. Even as a smallish laptop, its 4-pound[J1] travel weight is considerably heavier than a normal 12.5-inch or even 13.3-inch laptop. Part of that is the touchscreen digitizer, though an ounce or two is certainly due to the sturdy aluminum frame necessitated by the swiveling display. Gorilla glass probably adds to the overall weight as well.
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Source: http://www.pcworld.com/article/2013647/dell-xps-12-convertible-touch-laptop-meets-tablet.html
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