Company DAISUKE KAWAMURA created these great apps:
TwinView Notes, em notes for Dropbox -only editor that supports all shortcuts-, i-Memorize Sheet, 英単語専用単語帳アプリ これなんだっけ？, 家族レーダー お父さんいつ帰ってくるの？, English Analyzer, Dolphin English Flashcard, Dolphin Memorize, and others..
