We've certainly seen mobile-activated bus stop ads before, but the cool factor on this one was just too impressive to overlook. Tryvann Winter Park, a ski resort that sits just 15 minutes away from downtown Oslo, was searching high and low for ways to better market itself to residents of the bustling Norweigian city. In order to do so, it turned to JCDecaux, who conjured up the brilliant idea you see to the right. Essentially, this advertisement packs a few internal fans and a bucketful of faux snow; whenever it starts snowing up at the ski resort, someone sends a text to the b