I would also like to see this feature.
I have been trying to get the Cody House timeline (http://codyhouse.co/demo/vertical-timeline/index.html) to work in Sitefinity and the jquery seems to break the CMS. The widgets on the right can not be pulled, the top buttons in the backend disappear and the page is not functional.
Any ideas how I can get this timeline to work? At least until you release a Sitefinity integrated control.
Thanks for the help and info.
John