These new tweets are talking about the new Fortune Cookies added in Animal Crossing 3DS. From what I can tell these Fortune Cookies are sold at Timmy and Tommy’s store for the cost of two 3DS Play Coins. (these are the coins you get for walking with the system)
When you open the Fortune Cookie, there is a note (the fortune!) inside. Apparently, what the note says will affect your game in some way.
Editor’s Note: The official Animal Crossing 3DS Twitter account (@doubutsuno_mori) is tweeting new information and screenshots daily! We’ll be posting any new screenshots that come from these onto the Blog.