There's more than just video calling or conferencing to the iPhone 4; in truth, it's more than just a phone. That's what makes it so different compared to all of the smart devices out in the market today. The iPhone is, in result, an iPod as well, and it's one of Apple's a lot of widely-known and best-selling gizmos to date. Aside from being a phone, it is also a music gamer, a video banner, a video gaming console, a pocket PC, an instant messaging device-and the list goes on. The…