What is the workflow between iWork apps with iCloud? I have Numbers and Pages for iOS and the Mac. With iOS 5, I can create documents and spreadsheets in iCloud. How can I access those same iCloud documents in the Mac versions? Even better yet, if I want to create a document in the Mac version, how can I save it in iCloud to begin with? 

I have upgraded to the latest OS X Lion version (10.7.2) and while I see the new iCloud preference pane un System Preferences and I have enabled Documents In The Cloud, I cannot see to find their counterparts in the Mac iWork apps. Can someone point me in the right direction? Thanks.
There is no iCloud-enabled version of iWork '09 on the Mac as of yet. Right now the way to save to iCloud from the Mac iWork apps is through the website.

Enabling iCloud for iWork for Mac is a bigger deal than I think most people realize. We've still yet to see any sort of UI for saving documents to iCloud on a Mac. So, for example, in iWork, will you see a standard "iCloud" folder in the Finder? Will you see a UI pane similar to the iOS versions of the apps? But in that case, how can you save a standard file to on your computer? Apple hasn't yet answered these questions, and I believe they are still working out some of these major details. 

Aside from the UI issues, the Mac versions of iWork still have more advanced capabilities than the iOS versions. My guess, and hope, is that Apple will not enable cross-platform iCloud auto-saving until they are sure that changes will persist exactly across both platforms.