iCloud is currently being demoed at the WWDC keynote in San Francisco, and besides being a full replacement for MobileMe that does a lot of things (including App Store downloads and backups) for free, new features have been demoed as well. For instance, iWork integration: the iWork apps on the iPhone and iPad will get the possibility t0 push documents to iCloud and download them – it runs on all devices, iCloud will update the documents you’ve been working on and push them to all your other devices. The functionality has already been implemented in the iWork for iOS update from last week.

Then, iCloud features document storage and an API for developers so all apps can store documents in the cloud, push them around to devices, and automatically update those documents as changes happen on a user’s end. It works on Macs and PCs as well, and we’re expecting several developers to take advantage of this API (which is said to be very easy to implement) within the next few weeks through the iOS 5 betas.

Photos courtesy of This is my Next.