Of all the copycat accessories that can be produced, the "AirMail" case for the MacBook Air has some unfathomable popularity. Started almost on a whim, it was followed by the higher-end "Air Manila" in hand-stiched leather, and now there's yet another pretender to the envelope throne.
Japan's curiously named Bird Electron, which has long been known for its odd products, apparently decided to take a safer route in this case and follow what appears to be a popular design. (The original version has been sold out for months.)
This one is leather too and, as the photos on Akihabara News show, come in a tan finish as well as the traditional black. They look fairly nice, actually, though it's not clear if they'll make it to U.S. shores from Japan.