Greg Packer, we salute you. Sure, the weather in New York City is a lot finer now than it was back in the sweltering summer of 2007, but we still feel the need to tip our hat to someone who'd camp out three whole days at Apple's Fifth Avenue store (read: "The Cube") for an iPad. Tipster Tom dropped in the image after the break at around 3:15PM ET yesterday, and after a short nap in Penn Station, Mr. Packer is freshened up and holding down his spot yet again. We aren't anticipating iPhone-esque lines this coming Sat