Holy cow AT&T, another announcement? While most of the other national wireless carriers have opted to save some news for later on, AT&T keeps pushing out releases like it’s going out of style.Anyway, in addition to heavily pushing Nokia’s Windows Phone 8 handsets, the carrier has also announced that it will carry a pair of Windows 8 tablets — the Asus VivoTab RT and Samsung’s ATIV Smart PC — in time for the holiday rush.