Now we're talking. After Nintendo slyly told us that the 3DS set a day-one US sales record for its handheld division, it has now been more forthright and actually disclosed some cold hard numbers. 400,000 3DS units were shifted in the month of March, says Nintendo of America chief Reggie Fils-Aime, which amounts to just one working week's worth of sales when you consider the portable console launched on March 27th. That was still enough time for it