Online retailer has sparked a shockwave of excited fanboy chatter by listing Mario Kart Wii’s European release date as April 25th.

Nintendo’s previous date for the game was the somewhat vague “Q2 2008”, and a spokesperson for the company has insisted that is merely guessing at a possible launch date. However, we’re not totally convinced that the online retailer simply stuck a pin into their calendar and decided that the date would be the 25th…they clearly know something we don’t.

Mario Kart Wii is shaping up to be one of the most eagerly awaited titles of 2008, with motion sensitive controls, online play and (hopefully) enough killer gameplay to make fans forget the unfortunate stumble that was Mario Kart: Double Dash.