The current state and the development of the drag and drop can be followed in
http://dev.vaadin.com/svn/branches/6.3_dd/ . This is still really experimental and API is still unstable. Thus the ongoing work haven’t been merged to main 6.3 branch yet. I’ll expect that the drag and drop will develop rapidly over upcoming week. Meanwhile - feel free to try the implementation out and give feedback to the development team.