The HP slate's battery will last half as long as the iPad's, a leaked presentation showed on Monday. Since it will use a year-old 1.6GHz Atom processor, the Windows 7 tablet will run for five hours where the ARM-powered Apple device will last for at least 10 hours. The edge, Engadget has learned, would come even despite the HP tablet's smaller and lower resolution 8.9-inch, 1024x600 screen.
