Want to dunk your cell phone in a mug of beer? Maybe have a bath with it? Use it to hammer a nail? No problem for a new series of “rugged cell phones” made by wireless giants including Nokia and Samsung. They can be dropped on cement, taken to the hottest and coldest locales and are scratch and dust resistant. This is a riff off uber-durable laptops, which have become increasingly in-demand. Rugged cell phones make sense for construction workers, but anyone who’s a little rough with their mobile would be wise to take advantage of these little wonders. The only catch: they’re pricey.