Lenovo has led off CES Unveiled by revealing the IdeaTab S2, the sequel to its very first Android tablet. The new 10-inch tablet is one of the first mainstream slates to ship with Android 4.0 and is also a major leap in performance. It ships with a new, 1.7GHz dual-core Snapdragon MSM8960 that takes advantage of both a higher clock speed and a new cooler, more efficient chip design.
