In the mean time you can use a template column and provide your own editable view to the cells in that column.  Create a TemplateColumn and then handle the CellUpdating event.  One of the event arguments will be the content that you want the cell to show so here you would give it an editable view.  The grid will then use your view to render the cell value.  From here your editable view can update the underlying data as the user edits the cell value.