Phantom Hourglass is selling over twice as fast as Twilight Princess
A quick comparison of sales from launch shows that in five weeks Zelda: Phantom Hourglass has already sold over 650,000 units compared to 290,000 for Zelda: Twilight Princess in the same timeframe. In fact total sales of Phantom Hourglass have already eclipsed Twilight Princess proving that Japanese gamers prefer the cell-shaded style.
http://digg.com/nintendo_wii/Phantom_Hourglass_is_selling_over_twice_as_fast_as_Twilight_Princess