Hi Rhys,
yes --> so I'm waiting for the deployement in April ;-)
concerning the second question (drag and drop content type for buttons): i mean that you drag a content type named button to the content field and name and style it through the content type.
the link you've posted isn't valid any more --> http://help.clickdimensions.com/how-to-insert-social-links-into-an-email-template/
i just want to insert and style buttons for CTA via content type - so easy handling (i do not have to style a button via photoshop).
THX
Patrizia