I’ve also looked for it a few times, since the Italian DP16 Pikachu promo was mentioned on @justinator’s website that I’ve used as reference when I started collecting Pikachu cards myself, but in the 11 years I’ve been collecting, I haven’t seen any sign of it except for some rumors here and there.
I’m pretty sure the Pokémon Countdown Calendar of 2008 is indeed only released in English, German, and French; and the one from 2010 was exclusive to German.
Greetz,
Quuador