After last week's Kindle Fire teardown, Barnes & Noble's new slate must have been quaking in its boots. The Nook Tablet just had its moment under the knife, courtesy of screw driver-packing site iFixit. There's really not a whole heck of a lot of surprising things happening inside the $249 device, according to the site. There's a battery that's still emblazoned with a "NOOKCOLOR" under the model number, in spite of the new tablet's better battery life. And then there's 16GB of
