Are you the adventurous type? Looking to explore the great outdoors? Wherever you plan to go, empower yourself with the knowledge of your terrain by turning your iPhone 4 into a full-fledged GPS device that is able to cover around 5 million square miles of maps, roads, and significant locales with the Mophie Juice Pack Plus Outdoor Edition ($120). That number is way more than what your usual GPS service can cover. The Juice Pack ensures the reliability of your GPS/iPhone by doubling its battery life without doubling the bulk. The back-up rechargeable battery comes in the form of a protective shell that is light, shock-proof, and stylish. The Juice Pack also has an app that enables you to document your travel progress, speed, distance, elevation and even geo-tagged photos – and you can share these with the world by uploading it directly from the app to your Facebook.