The three best (Japanese) Language Learning-Apps(in my opionion) for iPod/iPhone

1.Kotoba
This is a multilingual Japanese Dictionary for iPod/iPhone.It recognizes Romaji,Hiragana and Kanji-Input and shows the stroke order (of the most Kanji),a Hiragana Transcription.

2.AnkiMobile
AnkiMobile is the mobile Version of the famous SRS Anki.It is a bit expensive but nonetheless very helpfull if you want to review Kanji/Kana or other things on the go-

3.Tae Kim's Guide to Learning Japanese
This is a very good Japanese Grammar Guide(also available on the internet),that covers a lot of topics of the Japanese Language.

Merry Christmas