Love the idea and isometric style! I played with it, I think the dragging needs some work...

Edit:

  * Enter should leave the editing modal with the updated title reflected on the "node"
  * I want to drag my "nodes" around but it's not clear how to do that.
  * Can't edit or delete the nodes ( maybe with an authenticated account? )
  * Wishlist: right click context menu to do the above
  * Wishlist: should be able to drag the scene without needing to select the hand icon