Several people are reporting that they are unable to access iCloud, with others also reporting trouble accessing the App Store.
iCloud and related services appear to be experiencing a disruption, with several people unable to access Apple's cloud services. Attempting to log into the iCloud website results in a connection error message.
Others are also reporting that they cannot access the App Store at this time. As of this writing, Apple has not yet updated their System Status page for their web services. This is the third major Apple service outage this year, following two disruptions in March.
Update: iCloud services appear to have been restored. Let us no if you're still having any problems.