Currently it is not possible to copy a board. I'd setup a board which was to be used as a template for future boards but when I decided to add a new tab to create a plan from a list that already exists, the board was created and replicated as per the previous - this is perfect. However, any subsequent changes made to the original board is then reflected in the clone board - not cool!! Similarly to how a task can be copied we should be able to copy an entire board and repurpose without it being affected by changes made in the original board.