I've been having trouble logging into icloud.com today. My apple id is @mac.com I login with my @me.com address and password: - prompted to verify my @mac.com address. - An email saying that I changed my Apple ID to @mac.com - Same popup asking me to verify my address remains on-screen. I try to login with my @mac.com address and password: - same as above I try to login with my @icloud.com address and password: - same as above. So, I try the following: I try to login with my @icloud.com address and password: - when the pop-up asks me to verify my @mac.com address, I change it to @icloud.com - this time, I get an email with a verification code - the popup now prompts for verification code. - I enter code and it works. - I get thanked for changing my apple id !? Slowly, the change ripples across my half a dozen devices... uugh... Were we warned about this?