I spent a number of years using Windows Mobile devices, and they always had an SD card slot for storage of files or programs. It was a simple and easy way to dramatically increase the amount of storage. But there's no card slot in the iPhone. Not to fear: AirStash is an SD card reader that uses Wi-Fi to let you access the files on the card via your iPhone or iPad. If you have movies or other video files or music on the flash card, it can actually stream those to your device. AirStash costs $100 and is available from Airstash.com.