Only just noticed this myself, however as I haven't upgraded to Yosemite on my iMac yet I'm holding back on flicking the switch to iCloud Drive so it's a little odd that they've blocked access to my Pages and Numbers files. One thing I noticed under settings was that it still displays my old iPhone 5S despite the fact that I have wiped it as per the Apple instructions for selling a device and removed it from my list of devices in the Apple My Support Profile pages.