Hiragana and katakana are the two syllabaries used in the Japanese writing system along with kanji.
The complete URLs for the two applications, in case you have to type them into your phone, are http://www.santinoli.com/software/midlet/kanottina.jad and http://www.santinoli.com/software/midlet/katakanottina.jad .
This software was written by David Santinoli.