It's now been over a year since we first gazed upon the well-stocked shelves of the iTunes App Store. While our Top iPhone Apps were tough to choose the first time around, the task was even tougher a year later, with over 65,000 apps now cluttering up the marketplace. Even for a specific task like calculating your blood alcohol content after a night of drinking, you can find over a dozen apps that fit the bill. That's a lot of apps. Which ones belong on your phone? We scoured the App Store yet again to deliver our favorites in five different categories.