Thank you very much for the positive feedback, I'm glad to hear about your good impressions from our product. Let me elaborate a little bit on the current functionality we have implemented, maybe you woould find it suitable for your use case scenario, if not, please let me know and I will turn this into a feature request. Since we have implemented ContentLifeCycle for Sitefinity content, whenever you edit a content (e.g. a page) a draft copy is made from the page's master state, and the live version of the page stays intact. While you are working on editing that page changes are applied to the draft copy and you can save these changes to the draft at any time by clicking on save as draft link from the more actions menu. If you click on preview you will see how these changes will look on the live version of the page, so whenever you are done with editing you can press publish and the draft copy will be saved as the new live version of the page. Actually each time you save the draft you are applying these changes to it and publishing the page applies the changes to the live version. I hope this information helps, if this is not the exact functionality that you want implemented, please do not hesitate to let us know, we'll be glad to help you further.
the Telerik team
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