Another great feature in iOS 5 is iCloud, Apple’s replacement for its subscription-based cloud service MobileMe. Unlike MobileMe, which will be discontinued next summer, iCloud is free. And if all your iOS devices are running iOS 5, you can even ditch your computer and just use iCloud--the devices are independent. For example, iCloud keeps a list of apps you've purchased. You can install these over the air at any time, instead of going through iTunes like before.