Company MadSwan, LLC created these great apps:
Mad Millions, iStudious - Note Taking + Flashcards w/ Handwriting and Rich Text, Mad Millions Free, Pen 'N Paper, Pen 'N Paper HD, iStudious - Flashcards w/ Handwriting and Rich Text, iStudious Lite - Flashcards w/ Handwriting and Rich Text, iStudious Lite - Note Taking + Flashcards w/ Handwriting and Rich Text, and others..