The new design features the iCloud login box with icons for each of the service’s web apps — including Mail, Contacts, Find My iPhone, and Documents in the Cloud — in the background.
Although the service has now left its beta, it seems that only developers can access it at this point. The service will be open to the public alongside the release of iOS 5 later today, however.
Other preparations for iOS 5 and iCloud saw Apple release iTunes 10.5 yesterday. If you haven’t already installed this, you’ll need to do so before you can upgrade to the new iOS firmware.