Nothing gets PC gamers drooling like the prospect of a new and improved GPU. If that's true, Nvidia fans must be suffering from a serious case of dry mouth. It's been almost a year since the company announced a GPU road map that promised to launch the new 28nm Kepler in the second half of 2011. Well, it's the second half of 2011, and we haven't heard much about Kepler since. Maybe it was an embarrassed silence; today, the company confirmed that Kepler won't be hitting the shelves until 2012.