Who knew a "p" packed so much punch? Just weeks after Lenovo cut loose with a boatload of new machines, the outfit has quietly slipped out an even newer model tailored for gamers. The 14-inch IdeaPad Y470p looks just about like the existing Y470, but swaps out the middling NVIDIA GeForce GT 520M for a far more potent Radeon HD 7690M. (For those wondering -- yep, that's the same chip in HP's new Envy 15.) There's also a 2.2GHz quad-core Core i7 processor, 8GB of RAM, an optional 1TB HDD, JBL speakers and a native 1,366 x 768 screen resolution. The unit ti
