Apple has redesigned the iCloud.com beta website to match the look and feel of iOS 7. Now, when users navigate to beta.icloud.com they are greeted with new icons for Mail, Contacts, Calendar, Notes, Reminders and Find My iPhone, plus a new animated, blurred background. All the web apps listed have also received a redesign inspired by iOS 7, which may give some hint to what OS X would look like if Apple decided to port iOS 7's design influence to the desktop.
iOS 7 and the new OS X, which so far has not been previewed with any new design UI changes, are expected to ship this fall. It is likely that the design changes being seen in the beta iCloud.com site will be rolled out to the normal site around the same time.