iCloud changes your Outlook calendar and contacts.
They no longer appear in there original folders, but in a special iCloud folder... Which means they don't show, along with your tasks, in Outlook Today. It seems to me Apple have not thought this through. It needs to be transparent to the Outlook user, and this is FAR from transparent. I have disabled these going to iCloud and spent most of the arternoon getting these back into their original folders...
Not the kind of solution I expect from Apple.