The MobileMe Internet Service from Apple is an Internet service that pushes e-mail, contact, and calendar events to your Mac, PC, and iPhone. It also allows you to keep data in sync between these devices, automatically. A 1-year subscription is included with your membership.
MobileMe features an online photo gallery function, which allows you to create an online album with only a few clicks. You can add export photos from iPhoto, or upload them directly from your iPhone. You'll even be able to have friends add photos to your gallery.
An iDisk is included with your MobileMe subscription. It features 40GB of online storage space, which you can use to access files from any computer, as well as your iPhone. You can use the iDisk to share files that are too big to send via e-mail. MobileMe also lets iPhone users locate a lost or stolen phone via the Find My iPhone feature.