Learn Middle-East Languages offers an easy and fun way to learn how to speak Middle-East languages. This application includes most common Middle-East languages like Arabic, Hebrew, Persian (Farsi), Pashto, and Turkish. All you need to do is tap a phrase and it will be spoken for you in the corresponding language.
One World Dictionary by Ascendo is a leading multilingual reference tool for Apple desktops.
InstantTranslate makes it really easy to translate a selection of text in the application you are working in from one language to another language.