After they saved the princess, Mario and Luigi moved to Manchester, UK and went into the restaurant business. Luigi sells pizzas, kebabs, and burgers; Mario owns a bakery and confectionary. Who knew? The Neatorama guys found this using Google Street View.
I'm a contributing editor here at Boing Boing. I also have a blog (TokyoMango), a book (Urawaza), and I freelance for Wired, Make, the NY Times Magazine, PRI's Studio360, etc. I'm @tokyomango on Twitter.