Apple has unveiled its much-anticipated iCloud service at its annual developers’ conference.
Apple boss Steve Jobs returned from medical leave to show off the features of the web-based service.
He said iCloud was necessary because the PC was no longer the digital hub of users’ digital lives.
The web-based service aims to synchronise and co-ordinate the key content people store and share across their devices.
Contacts, calendar and mail applications have been re-written so a change to one propagates across the other versions on separate devices. This re-writing means Apple’s MobileMe service will soon cease to exist.
Anyone buying an app, book or music track for one device will see it replicated on the other Apple devices they own. Similarly, bookmarks for interesting web pages will be shared across all gadgets.
Mr Jobs stressed that iCloud was “not just a hard disk in the sky”.
“We are demoting the PC and Mac to just be a device,” he said. “And moving the digital hub centre of your digital life to the cloud.”
This would end the current frustration of keeping content such as photos and songs synchronised.
One key element of iCloud was Apple’s music store iTunes, he said. This now has a iCloud element so music bought on one device can be propagated across all the Apple gadgets that person owns.
One part of the cloud-version of iTunes, called iTunes Match, will also scan the songs that people have ripped from their own CDs. This will recreate the library in the cloud without the need for the music to be uploaded. The service will cost $24.99 a year in the US. UK prices have yet to be given.
The release of iTunes Cloud pits Apple against Google and Amazon which have both unveiled their own web-based music storage services. However, both those lack the involvement of record labels and the ability to replicate an existing library.