iWork documents deleted by iCloud on iPad

After updating my devices to iOS 5, I went to sync my documents with iCloud. iWork documents successfully synced, and were viewable on my iPad, iPhone and iCloud. But this morning the Pages, Numbers, and Keynote docs disappeared from my iPad. No file on iCloud. All documents lost and no longer stored in my local backup. Restarting and restoring the iPad failed. That's a pretty serious bug.* On