Whoa. Every so often, a giant in Round Rock pokes it head up above water long enough to put forth a truly mesmerizing design, and while it's no Adamo, this is most definitely the freshest take we've seen on tablets in a very, very long time. The gallery below showcases a prototype that's lounging around within Dell's top secret labs, a 7-inch slate that's adorned with a slide-out keyboard. Said keyboard, however, is hardly typical -- it's rocking a split-key design that's not at all dissimilar to the virtual layouts recently showcased within