HP late Wednesday refreshed its lone remaining tablet through the Slate 2. The Windows 7 hardware keeps the same outside form with an 8.9-inch, 1024x600 display but trades up from the 2009-era Atom of the original Slate 500 to a modern 1.66GHz Atom Z670 from the Oak Trail family. The upgrade theoretically nets it six hours of actual battery life versus the original's claimed five and often much less.
