Whenever I attempt to log in to my email through the iCloud.com website, I get an error that says "To use iCloud Mail, create an @me.com email address by turning on Mail in your iCloud settings using iOS or OS X." I am also unable to access it through my iPhone 4 running the iOS 5 GM. I've got the email set up prior to this and it was working properly. Any idea what would be causing this? Thanks!