Lenovo is pulling back the curtain on several Windows 8 devices today, and among the bunch is a somewhat familiar face: the IdeaPad Yoga. We first got a look at the 13.3-inch device back at CES in January, where it stood out with a flip-and-fold design that lets it transform into a tablet from a notebook and vice versa. In addition to unveiling full spec and pricing information for the Yoga 13, Lenovo is announcing an 11-inch version. The IdeaPad Yoga 13 will go for $1,099 and up when it hits Best Buy and Lenovo's onl