There was a message on the iCloud status page that there was an outage yesterday for 'less than 10% of users'. I haven't been able to log into any Apple service all day, and trying to submit a web service request is also broken (basically
http://daw.apple.com doesn't answer web requests, whatever that does). pretty poor state of affairs all round. I'll give it the weekend (sun's out so not having email isn't really a big issue) and if it's not fixed early next week I'll book in a genius appointment and take it out on some poor t-shirt wearing Apple bod

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Jon