iPhone lets you carry photos and videos with you, so you can share them with your family, friends, and associates. You can sync photos and videos (Mac only) from your computer, view photos and videos (iPhone 3GS only) taken with the built-in camera, use photos as wallpaper, and assign photos to identify contacts when they call. You can also send photos and videos in email messages, send photos and videos (iPhone 3GS only) in MMS messages, and upload photos and videos to MobileMe galleries.
NOTE: MMS is available only on iPhone 3G or later and if supported by your carrier.