iCloud on iOS 5 is one of the most handy and easy to use inventions that apple has come up with to make it convenient for people that own more then 1 apple device. Whether you have an iPhone,iPad,iPod, or mac computer you can seamlessly interact with all devices at once. Take a picture with your iPhone? It automatically becomes available on all other devices in your iCloud without you having to do a thing. Even emails and notes are synchronized to the point if you read an email from your iPad it will be marked as read on your other devices. Make an appointment on your macs calendar, it automatically becomes available on all other devices. The possibilities are endless!!!