A few years ago, netbooks were small, light, inexpensive, often underpowered computers — and the word quickly became a pejorative term, to be used only with the greatest of disdain as you throw your netbook out the window. Then came ultrabooks — small, light, inexpensive, often underpowered computers that have taken the PC market by storm. The more things change, the more they stay the same. So while Lenovo may call its new IdeaPad Yoga 11 an ultrabook, make no mistake: it's a netbook. This is a bag-sized, two-pound, $599 laptop that runs low-end software on low-end hardware. It does have a handy touchscreen, plus an ultrapliable hinge that turns the laptop into a tablet and a bunch of other things besides, but it's a netbook.