It's talking, Merry. The tree is talking.

  If you have ever found yourself lonely in the world of Ur, now you can share it with the company of the trees. If you harvest, water or pet a tree, you'll see that it now produces a bit of dialog to tell you what it thought of your action. Just wanted to put up a little thing to hopefully make your experience just a little more fun. mailbox Also, you should now be able to see all of those mailboxes that you worked so hard to place in the map filler. You can check your mail and it will very accurately tell you exactly how much mail you have (hint, you won't have any for a while). Go try it out! Link to the game