I'm in Menlo Park (SF Bay Area). iCloud email has been down for me since 12:30 AM.
Apple's products are awsome but the company is clearly is not ready to be one's primary email or collaboration tools provider.
At a five nines lievel of reliabilitly, the service should have been restored at least 6.5 hours ago--and that's assuming this was the only outage this year, and that's clearly NOT the case.
I visited my local Appls Store (Stanford Shopping Center/Palo Alto) an 2 hours ago and they professed ignorance of the problem and were unaware of the many Apple Support Community postinge on the situation. They told me to delete myiCloud account and set up a fresh instance of the account. Don't bother trying that remedy, it doesn't fix the problem.