I'm running 8.1.2 and I have updated Pages, Numbers and Keynote recently. I noticed a few days ago that none of them are working. When I open any of the apps I get nothing but a blank gray page. Have tried exiting the apps and reopening them and restarting the iPad, that didn't help. Anyone else have this issue? I also recently switched to iCloud Drive but I'm pretty sure they were still working after that and the last update killed them. I just tried to delete Pages and reinstall it, but when the apps started wiggling the iPad completely froze and eventually shut off. After the restart, same thing. It seems that iOS 8 has basically killed this thing.