I have not been thrilled with Apple's cloud services. It seems wonky, I've heard some horror stories and have personally had a royal pain with their mobile me, etc. For me, Google for calendar and Contacts sync...and Dropbox for files. Evernote for note taking. Cross platform, works really well. that being said I'll probably get an ipad mini and keyboard for note jotting, evernote, etc. just gotta get the accessories.