I'm considering buying DayOne, a journaling app for iOS and Mac that syncs through iCloud's Documents and Data feature. I already own the iWork app suite on iOS and Mac, and I do not want to use iCloud syncing for the iWork apps. Is there a way I can turn on the Documents and Data syncing on iCloud for use with DayOne without having the iWork apps sync through iCloud?
edit: Thanks for the iOS portion of the answer, Jonathan. I still would like an explicit answer about the iWork apps on my Mac, though. Has iWork '09 been updated for iCloud? If so, does each app have a setting to turn on/off iCloud storage? I read somewhere that there's a ~/Library/Mobile Documents folder where your files are stored if you are using iCloud, and I want to be sure that I do what is necessary to prevent the iWork apps from doing this once I enable Documents & Settings on my Mac. Please reference the source of your information. I'd rather not have to learn by trial & error. Has anyone already tried this?
edit 2: Sorry I didn't specify earlier, I thought it was an obvious assumption, but I'm using iOS version 5.1 on my iPhone and OS X Lion on my Mac (the latest released versions of both operating systems).