Dell made a move last week that we were very happy to see — it decided to add a new, 1080p option to its otherwise-excellent XPS 13 ultrabook . We’ve had the opportunity to gaze upon the new display here at CES, and we’re glad to report that not only has Dell bumped the resolution up from the unspectacular 1366 x 768 on the original model, but it’s also addressed panel quality issues. We immediately noticed that colors were far more accurate on the updated display, and whites are now closer to true white instead of the blueish hue present on the lower-res screen. There’s a reason why it all looks so much better: the panel’s color gamut has been increased from 45 percent to 72 percent, according to Engadget . The viewing angle issues we..