Can functionality be all things to all people? It can if you're carrying this universal backpack & messenger bag pouch that accommodates iPhone 4, iPhone 3/3G,BlackBerry, most smart phones, compact digital cameras and portable media devices. Its versatile design allows this case to be attached to either a backpack shoulder strap or a messenger shoulder strap, with a carabineer tab for additional wearing options. And if that weren't enough, it sports a front pocket for headphones, flash-memory cards or other small items and a pocket for business/credit cards. Oh to be one with the universe!