The iPhone 5's larger four-inch screen is great for you, the consumer, but poses a slight problem for app makers: They all now have to know reformat their programs to run on the new display. The good news is a number of developers burned the midnight whiskey to make their apps available for Apple's new handset on or close to launch. So while the rest of the pack catches up, you should download these 13 apps that are tailored made for the iPhone 5.