Apple has sent out an email to registered participants in the AppleSeed beta-testing program, most of whom are currently working with the forthcoming OS X 10.10 Yosemite, that those who opted to engage the iCloud Drive feature may see “more downtime” than has been previously seen. Still in development, Apple’s iCloud Drive is expected to be included in the formal release of Yosemite and iOS 8, and allows users to store any kind of document or image/video file, as well as enable other features….