Today IBM has released the first group of language pack, Below you can see the schedule of all regional language pack that I've found here
23-Apr for G1 (Catalan, German, Korean, Simplified Chinese, Spanish, French, Traditional Chinese, Japanese, Brazilian Portuguese, Italian).
04-Jun for G2a (Finish, Norwegian, Swedish, Danish, Dutch)
23-Jul for G2b/G3 (Greek, Slovenian, Thai, Turkish, Russian, IB Portuguese, Hungarian, Slovakian, Hebrew, Kazakh, Polish, Czech).
This are the Italian PartNumber
windows basic CIJ7AIT
windows des+admin CIJ7KIT
linux aix CIJB0IT
I had big surprise when I saw the notes+dev+admin Italian that was not translated in previous releases (if this was not a mistake in description..)