Apple is starting to notify some ex-MobileMe users of impending downgrades to their iCloud accounts. When Apple began pushing people to transition away from MobileMe, they were given temporary 20GB iCloud accounts as an incentive. The new email memos state that unless people pay for higher-end iCloud subscriptions, their accounts will be downgraded to the free 5GB tier on September 30th. Apple had originally set a June 30th deadline, but moved the date in May.