It's not a surprise to hear that Eiji Aonuma, producer of The Legend of Zelda series, is once again teasing more releases on 3DS. We've heard rumours of a 3D remastering of The Legend of Zelda: A Link to the Past, the possibility of a remake of The Legend of Zelda: Majora's Mask, and Aonuma himself referring to a continuation of past efforts, which could mean either of the above or a brand new game.

As suggested by Satoru Iwata during the most recent Nintendo Direct broadcast, Nintendo Letter Box, or Swapnote, will be used to communicate directly with gamers, and reports have circulated of a new note from Eiji Aonuma teasing more Zelda games. That very note seems to be spreading to 3DS consoles around the world, as we've just received our own copy. Aonuma has said the following, against a backdrop of some rather snazzy Zelda stationery.

Hello! This is Aonuma, Nintendo's Legend of Zelda producer. Did you enjoy The Legend of Zelda: Ocarina of Time 3D? Thanks to everyone, the Legend of Zelda series had a very happy 25th anniversary. I hope you're looking forward to new Legend of Zelda games.

With a Zelda sound clip at the start it's a neat letter to keep in your mail box. More importantly, there's a blatant tease about more titles being on the way: the mention of The Legend of Zelda: Ocarina of Time 3D suggests a potential 3DS reveal, but there are plenty of possibilities and we'll keep an eye out for any official announcements.