If you're a regular Photo Stream or Documents in the Cloud user, this morning's iCloud outage is probably already giving you hives. The entire service isn't down, but key parts of it are. Users can still make use of Find My Friends, iTunes Match, and Contact, Calendar, Reminders, and Notes syncing, but iOS device backups, document syncing, and Photo Stream have been down for (as of this writing) almost seven hours and counting.

Apple's System Status page, which was revamped last December to offer more information to users, shows that the three iCloud services have been down since just after 3am CST. Apple claims "less than 3%" of users are affected by this outage, though such a claim seems disingenuous—at the very least, there's a hefty portion of iPhone, iPod touch, and iPad users who back up their devices to the cloud, and tons of others sync documents over iCloud through various apps. (And, as noted by 9to5Mac earlier, some users on Twitter are reporting other iCloud services being down that Apple has not indicated on the status page.)

iCloud outages are, unfortunately, nothing new. Still, they rarely last this long. There's no indication when these services will be back up; we've reached out for comment, but Apple has yet to respond. We'll update this article if we hear anything back.